61243260 has 48 divisors (see below), whose sum is σ = 184674336. Its totient is φ = 15075072.

The previous prime is 61243229. The next prime is 61243267. The reversal of 61243260 is 6234216.

It is a self number, because there is not a number n which added to its sum of digits gives 61243260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61243267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38479 + ... + 40038.

It is an arithmetic number, because the mean of its divisors is an integer number (3847382).

Almost surely, 2^61243260 is an apocalyptic number.

61243260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61243260 is an abundant number, since it is smaller than the sum of its proper divisors (123431076).

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

61243260 is a wasteful number, since it uses less digits than its factorization.

61243260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78542 (or 78540 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 61243260 is about 7825.8073065978. The cubic root of 61243260 is about 394.1722987473.

Adding to 61243260 its reverse (6234216), we get a palindrome (67477476).

The spelling of 61243260 in words is "sixty-one million, two hundred forty-three thousand, two hundred sixty".