61409862 has 96 divisors (see below), whose sum is σ = 150808320. Its totient is φ = 17962560.

The previous prime is 61409851. The next prime is 61409869. The reversal of 61409862 is 26890416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61409869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290937 + ... + 291147.

It is an arithmetic number, because the mean of its divisors is an integer number (1570920).

Almost surely, 2^61409862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61409862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75404160).

61409862 is an abundant number, since it is smaller than the sum of its proper divisors (89398458).

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

61409862 is a wasteful number, since it uses less digits than its factorization.

61409862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 61409862 is about 7836.4444743774. Note that the first 4 decimals coincide. The cubic root of 61409862 is about 394.5294016360.

The spelling of 61409862 in words is "sixty-one million, four hundred nine thousand, eight hundred sixty-two".