388486992 has 40 divisors (see below), whose sum is σ = 1062628416. Its totient is φ = 121878016.

The previous prime is 388486981. The next prime is 388486993. The reversal of 388486992 is 299684883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388486993) 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, 237228 + ... + 238859.

Almost surely, 2^388486992 is an apocalyptic number.

It is an amenable number.

388486992 is an abundant number, since it is smaller than the sum of its proper divisors (674141424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388486992 is a wasteful number, since it uses less digits than its factorization.

388486992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476115 (or 476109 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 57.

The square root of 388486992 is about 19710.0733636382. The cubic root of 388486992 is about 729.6683249629.

The spelling of 388486992 in words is "three hundred eighty-eight million, four hundred eighty-six thousand, nine hundred ninety-two".