78402752 has 28 divisors (see below), whose sum is σ = 157048200. Its totient is φ = 38835008.

The previous prime is 78402749. The next prime is 78402761. The reversal of 78402752 is 25720487.

The cubic root of 78402752 is 428.

It is a perfect power (a cube), and thus also a powerful number.

It is a super-2 number, since 2×78402752² = 12293983042347008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732683 + ... + 732789.

Almost surely, 2^78402752 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 78402752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78524100).

78402752 is an abundant number, since it is smaller than the sum of its proper divisors (78645448).

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

78402752 is an frugal number, since it uses more digits than its factorization.

78402752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 78402752 is about 8854.5328504670.

The spelling of 78402752 in words is "seventy-eight million, four hundred two thousand, seven hundred fifty-two".