476990988 has 12 divisors (see below), whose sum is σ = 1112979000. Its totient is φ = 158996992.

The previous prime is 476990971. The next prime is 476990989. The reversal of 476990988 is 889099674.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×476990988² = 455040805266432288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (476990989) 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, 19874613 + ... + 19874636.

It is an arithmetic number, because the mean of its divisors is an integer number (92748250).

Almost surely, 2^476990988 is an apocalyptic number.

It is an amenable number.

476990988 is an abundant number, since it is smaller than the sum of its proper divisors (635988012).

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

476990988 is a wasteful number, since it uses less digits than its factorization.

476990988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39749256 (or 39749254 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The square root of 476990988 is about 21840.1233513000. The cubic root of 476990988 is about 781.3340025472.

The spelling of 476990988 in words is "four hundred seventy-six million, nine hundred ninety thousand, nine hundred eighty-eight".