390977932 has 6 divisors (see below), whose sum is σ = 684211388. Its totient is φ = 195488964.

The previous prime is 390977903. The next prime is 390977941. The reversal of 390977932 is 239779093.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48872238 + ... + 48872245.

Almost surely, 2^390977932 is an apocalyptic number.

It is an amenable number.

390977932 is a deficient number, since it is larger than the sum of its proper divisors (293233456).

390977932 is a wasteful number, since it uses less digits than its factorization.

390977932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97744487 (or 97744485 counting only the distinct ones).

The product of its (nonzero) digits is 642978, while the sum is 49.

The square root of 390977932 is about 19773.1619120463. The cubic root of 390977932 is about 731.2245238939.

The spelling of 390977932 in words is "three hundred ninety million, nine hundred seventy-seven thousand, nine hundred thirty-two".