397044480 has 144 divisors (see below), whose sum is σ = 1449310464. Its totient is φ = 90746880.

The previous prime is 397044467. The next prime is 397044517. The reversal of 397044480 is 84440793.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19495 + ... + 34265.

It is an arithmetic number, because the mean of its divisors is an integer number (10064656).

Almost surely, 2^397044480 is an apocalyptic number.

397044480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397044480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724655232).

397044480 is an abundant number, since it is smaller than the sum of its proper divisors (1052265984).

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

397044480 is a wasteful number, since it uses less digits than its factorization.

397044480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14802 (or 14788 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 397044480 is about 19925.9750075122. The cubic root of 397044480 is about 734.9871069977.

The spelling of 397044480 in words is "three hundred ninety-seven million, forty-four thousand, four hundred eighty".