388900402 has 8 divisors (see below), whose sum is σ = 636382512. Its totient is φ = 176772900.

The previous prime is 388900387. The next prime is 388900409. The reversal of 388900402 is 204009883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (388900409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8838624 + ... + 8838667.

It is an arithmetic number, because the mean of its divisors is an integer number (79547814).

Almost surely, 2^388900402 is an apocalyptic number.

388900402 is a deficient number, since it is larger than the sum of its proper divisors (247482110).

388900402 is a wasteful number, since it uses less digits than its factorization.

388900402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17677304.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 388900402 is about 19720.5578521501. The cubic root of 388900402 is about 729.9270597041.

The spelling of 388900402 in words is "three hundred eighty-eight million, nine hundred thousand, four hundred two".