397479480 has 64 divisors (see below), whose sum is σ = 1193754240. Its totient is φ = 105877632.

The previous prime is 397479473. The next prime is 397479529. The reversal of 397479480 is 84974793.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199047 + ... + 201033.

It is an arithmetic number, because the mean of its divisors is an integer number (18652410).

Almost surely, 2^397479480 is an apocalyptic number.

397479480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397479480 is an abundant number, since it is smaller than the sum of its proper divisors (796274760).

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

397479480 is a wasteful number, since it uses less digits than its factorization.

397479480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668 (or 3664 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 397479480 is about 19936.8874200563. The cubic root of 397479480 is about 735.2554251313.

The spelling of 397479480 in words is "three hundred ninety-seven million, four hundred seventy-nine thousand, four hundred eighty".