475811980 has 48 divisors (see below), whose sum is σ = 1209128256. Its totient is φ = 153538560.

The previous prime is 475811951. The next prime is 475811983. The reversal of 475811980 is 89118574.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (475811983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97581 + ... + 102340.

It is an arithmetic number, because the mean of its divisors is an integer number (25190172).

Almost surely, 2^475811980 is an apocalyptic number.

It is an amenable number.

475811980 is an abundant number, since it is smaller than the sum of its proper divisors (733316276).

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

475811980 is a wasteful number, since it uses less digits than its factorization.

475811980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199954 (or 199952 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 475811980 is about 21813.1148623941. The cubic root of 475811980 is about 780.6897142890.

The spelling of 475811980 in words is "four hundred seventy-five million, eight hundred eleven thousand, nine hundred eighty".