394213532 has 12 divisors (see below), whose sum is σ = 690510240. Its totient is φ = 196924896.

The previous prime is 394213507. The next prime is 394213549. The reversal of 394213532 is 235312493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40532 + ... + 49307.

It is an arithmetic number, because the mean of its divisors is an integer number (57542520).

Almost surely, 2^394213532 is an apocalyptic number.

It is an amenable number.

394213532 is a deficient number, since it is larger than the sum of its proper divisors (296296708).

394213532 is a wasteful number, since it uses less digits than its factorization.

394213532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90940 (or 90938 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The square root of 394213532 is about 19854.8113060789. The cubic root of 394213532 is about 733.2361065775.

The spelling of 394213532 in words is "three hundred ninety-four million, two hundred thirteen thousand, five hundred thirty-two".