388204956 has 18 divisors (see below), whose sum is σ = 981295952. Its totient is φ = 129401640.

The previous prime is 388204939. The next prime is 388204987. The reversal of 388204956 is 659402883.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5391700 + ... + 5391771.

Almost surely, 2^388204956 is an apocalyptic number.

388204956 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

388204956 is an abundant number, since it is smaller than the sum of its proper divisors (593090996).

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

388204956 is a wasteful number, since it uses less digits than its factorization.

388204956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10783481 (or 10783476 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 388204956 is about 19702.9174489465. The cubic root of 388204956 is about 729.4917059590.

The spelling of 388204956 in words is "three hundred eighty-eight million, two hundred four thousand, nine hundred fifty-six".