397239480 has 96 divisors (see below), whose sum is σ = 1408408560. Its totient is φ = 96299520.

The previous prime is 397239443. The next prime is 397239523. The reversal of 397239480 is 84932793.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46197 + ... + 54116.

Almost surely, 2^397239480 is an apocalyptic number.

397239480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397239480 is an abundant number, since it is smaller than the sum of its proper divisors (1011169080).

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

397239480 is a wasteful number, since it uses less digits than its factorization.

397239480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100341 (or 100334 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 397239480 is about 19930.8675174966. The cubic root of 397239480 is about 735.1074117630.

The spelling of 397239480 in words is "three hundred ninety-seven million, two hundred thirty-nine thousand, four hundred eighty".