394130888 has 12 divisors (see below), whose sum is σ = 739100715. Its totient is φ = 197037368.

The previous prime is 394130857. The next prime is 394130929. The reversal of 394130888 is 888031493.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 197065444 + 197065444 = 14038^2 + 14038^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14038.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 52643 + ... + 59661.

Almost surely, 2^394130888 is an apocalyptic number.

It is an amenable number.

394130888 is a deficient number, since it is larger than the sum of its proper divisors (344969827).

394130888 is an frugal number, since it uses more digits than its factorization.

394130888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14044 (or 7021 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 394130888 is about 19852.7299885935. The cubic root of 394130888 is about 733.1848637907.

Multiplying 394130888 by its product of nonzero digits (165888), we get a square (65381584748544 = 8085888²).

The spelling of 394130888 in words is "three hundred ninety-four million, one hundred thirty thousand, eight hundred eighty-eight".