78022732 has 12 divisors (see below), whose sum is σ = 136914400. Its totient is φ = 38904336.

The previous prime is 78022729. The next prime is 78022781. The reversal of 78022732 is 23722087.

It is a junction number, because it is equal to n+sod(n) for n = 78022694 and 78022703.

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, 25107 + ... + 28042.

Almost surely, 2^78022732 is an apocalyptic number.

It is an amenable number.

78022732 is a deficient number, since it is larger than the sum of its proper divisors (58891668).

78022732 is a wasteful number, since it uses less digits than its factorization.

78022732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53520 (or 53518 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 78022732 is about 8833.0477186529. The cubic root of 78022732 is about 427.3073710088.

The spelling of 78022732 in words is "seventy-eight million, twenty-two thousand, seven hundred thirty-two".