78057932 has 24 divisors (see below), whose sum is σ = 141322272. Its totient is φ = 37699200.

The previous prime is 78057919. The next prime is 78057977. The reversal of 78057932 is 23975087.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 78057932.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14582 + ... + 19202.

It is an arithmetic number, because the mean of its divisors is an integer number (5888428).

Almost surely, 2^78057932 is an apocalyptic number.

It is an amenable number.

78057932 is a deficient number, since it is larger than the sum of its proper divisors (63264340).

78057932 is a wasteful number, since it uses less digits than its factorization.

78057932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769 (or 4767 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 78057932 is about 8835.0400112280. The cubic root of 78057932 is about 427.3716213356.

The spelling of 78057932 in words is "seventy-eight million, fifty-seven thousand, nine hundred thirty-two".