61178232 has 64 divisors (see below), whose sum is σ = 158860800. Its totient is φ = 19618560.

The previous prime is 61178219. The next prime is 61178239. The reversal of 61178232 is 23287116.

It is a self number, because there is not a number n which added to its sum of digits gives 61178232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61178239) 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, 77343 + ... + 78129.

It is an arithmetic number, because the mean of its divisors is an integer number (2482200).

Almost surely, 2^61178232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61178232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79430400).

61178232 is an abundant number, since it is smaller than the sum of its proper divisors (97682568).

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

61178232 is a wasteful number, since it uses less digits than its factorization.

61178232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 912 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 61178232 is about 7821.6514880171. The cubic root of 61178232 is about 394.0327388257.

The spelling of 61178232 in words is "sixty-one million, one hundred seventy-eight thousand, two hundred thirty-two".