394484432 has 20 divisors (see below), whose sum is σ = 768541956. Its totient is φ = 196151040.

The previous prime is 394484429. The next prime is 394484471. The reversal of 394484432 is 234484493.

It can be written as a sum of positive squares in 2 ways, for example, as 152868496 + 241615936 = 12364^2 + 15544^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 394484432.

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, 65213 + ... + 71004.

Almost surely, 2^394484432 is an apocalyptic number.

It is an amenable number.

394484432 is a deficient number, since it is larger than the sum of its proper divisors (374057524).

394484432 is a wasteful number, since it uses less digits than its factorization.

394484432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136406 (or 136400 counting only the distinct ones).

The product of its digits is 331776, while the sum is 41.

The square root of 394484432 is about 19861.6321585110. The cubic root of 394484432 is about 733.4040258756.

The spelling of 394484432 in words is "three hundred ninety-four million, four hundred eighty-four thousand, four hundred thirty-two".