78732264 has 64 divisors (see below), whose sum is σ = 212970240. Its totient is φ = 24111360.

The previous prime is 78732239. The next prime is 78732293. The reversal of 78732264 is 46223787.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85969 + ... + 86879.

It is an arithmetic number, because the mean of its divisors is an integer number (3327660).

Almost surely, 2^78732264 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 78732264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106485120).

78732264 is an abundant number, since it is smaller than the sum of its proper divisors (134237976).

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

78732264 is a wasteful number, since it uses less digits than its factorization.

78732264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1206 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 78732264 is about 8873.1203079864. The cubic root of 78732264 is about 428.5987630820.

The spelling of 78732264 in words is "seventy-eight million, seven hundred thirty-two thousand, two hundred sixty-four".