78332032 has 16 divisors (see below), whose sum is σ = 156052350. Its totient is φ = 39165952.

The previous prime is 78332027. The next prime is 78332047. The reversal of 78332032 is 23023387.

It can be written as a sum of positive squares in only one way, i.e., 74235456 + 4096576 = 8616^2 + 2024^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×78332032² = 12271814474498048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305857 + ... + 306112.

Almost surely, 2^78332032 is an apocalyptic number.

It is an amenable number.

78332032 is a deficient number, since it is larger than the sum of its proper divisors (77720318).

78332032 is an equidigital number, since it uses as much as digits as its factorization.

78332032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611983 (or 611971 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 78332032 is about 8850.5385146894. The cubic root of 78332032 is about 427.8712746491.

The spelling of 78332032 in words is "seventy-eight million, three hundred thirty-two thousand, thirty-two".