388870430 has 32 divisors (see below), whose sum is σ = 786590784. Its totient is φ = 137339136.

The previous prime is 388870429. The next prime is 388870441. The reversal of 388870430 is 34078883.

It is a super-2 number, since 2×388870430² = 302440422656769800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62039 + ... + 68018.

It is an arithmetic number, because the mean of its divisors is an integer number (24580962).

Almost surely, 2^388870430 is an apocalyptic number.

388870430 is an abundant number, since it is smaller than the sum of its proper divisors (397720354).

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

388870430 is a wasteful number, since it uses less digits than its factorization.

388870430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130100.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 388870430 is about 19719.7979198571. The cubic root of 388870430 is about 729.9083077428.

The spelling of 388870430 in words is "three hundred eighty-eight million, eight hundred seventy thousand, four hundred thirty".