61412280 has 64 divisors (see below), whose sum is σ = 184947840. Its totient is φ = 16313472.

The previous prime is 61412257. The next prime is 61412303. The reversal of 61412280 is 8221416.

61412280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61412257) and next prime (61412303).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 61412280.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36007 + ... + 37673.

It is an arithmetic number, because the mean of its divisors is an integer number (2889810).

Almost surely, 2^61412280 is an apocalyptic number.

61412280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61412280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92473920).

61412280 is an abundant number, since it is smaller than the sum of its proper divisors (123535560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61412280 is a wasteful number, since it uses less digits than its factorization.

61412280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988 (or 1984 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 61412280 is about 7836.5987520097. The cubic root of 61412280 is about 394.5345797379.

Adding to 61412280 its reverse (8221416), we get a palindrome (69633696).

The spelling of 61412280 in words is "sixty-one million, four hundred twelve thousand, two hundred eighty".