394975413 has 32 divisors (see below), whose sum is σ = 675025920. Its totient is φ = 223579440.

The previous prime is 394975411. The next prime is 394975421. The reversal of 394975413 is 314579493.

It is not a de Polignac number, because 394975413 - 2¹ = 394975411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394975411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10458 + ... + 29988.

It is an arithmetic number, because the mean of its divisors is an integer number (21094560).

Almost surely, 2^394975413 is an apocalyptic number.

It is an amenable number.

394975413 is a deficient number, since it is larger than the sum of its proper divisors (280050507).

394975413 is a wasteful number, since it uses less digits than its factorization.

394975413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19654 (or 19648 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 394975413 is about 19873.9883516118. The cubic root of 394975413 is about 733.7081681316.

The spelling of 394975413 in words is "three hundred ninety-four million, nine hundred seventy-five thousand, four hundred thirteen".