78015352 has 32 divisors (see below), whose sum is σ = 148916880. Its totient is φ = 38310400.

The previous prime is 78015337. The next prime is 78015359. The reversal of 78015352 is 25351087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78015359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194352 + ... + 194752.

Almost surely, 2^78015352 is an apocalyptic number.

It is an amenable number.

78015352 is a deficient number, since it is larger than the sum of its proper divisors (70901528).

78015352 is a wasteful number, since it uses less digits than its factorization.

78015352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 78015352 is about 8832.6299594175. The cubic root of 78015352 is about 427.2938978934.

The spelling of 78015352 in words is "seventy-eight million, fifteen thousand, three hundred fifty-two".