475643992 has 16 divisors (see below), whose sum is σ = 895730400. Its totient is φ = 236782560.

The previous prime is 475643963. The next prime is 475643999. The reversal of 475643992 is 299346574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475643999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127984 + ... + 131647.

It is an arithmetic number, because the mean of its divisors is an integer number (55983150).

Almost surely, 2^475643992 is an apocalyptic number.

It is an amenable number.

475643992 is a deficient number, since it is larger than the sum of its proper divisors (420086408).

475643992 is a wasteful number, since it uses less digits than its factorization.

475643992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259866 (or 259862 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 49.

The square root of 475643992 is about 21809.2639032132. The cubic root of 475643992 is about 780.5978278953.

The spelling of 475643992 in words is "four hundred seventy-five million, six hundred forty-three thousand, nine hundred ninety-two".