394265136 has 40 divisors (see below), whose sum is σ = 1027545840. Its totient is φ = 130256896.

The previous prime is 394265117. The next prime is 394265153. The reversal of 394265136 is 631562493.

It is a junction number, because it is equal to n+sod(n) for n = 394265094 and 394265103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30921 + ... + 41768.

It is an arithmetic number, because the mean of its divisors is an integer number (25688646).

Almost surely, 2^394265136 is an apocalyptic number.

It is an amenable number.

394265136 is an abundant number, since it is smaller than the sum of its proper divisors (633280704).

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

394265136 is a wasteful number, since it uses less digits than its factorization.

394265136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72813 (or 72807 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 394265136 is about 19856.1107974346. The cubic root of 394265136 is about 733.2680996151.

The spelling of 394265136 in words is "three hundred ninety-four million, two hundred sixty-five thousand, one hundred thirty-six".