397603590 has 32 divisors (see below), whose sum is σ = 957281760. Its totient is φ = 105690624.

The previous prime is 397603573. The next prime is 397603627. The reversal of 397603590 is 95306793.

It is a super-2 number, since 2×397603590² = 316177229561776200, which contains 22 as substring.

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, 11395 + ... + 30414.

It is an arithmetic number, because the mean of its divisors is an integer number (29915055).

Almost surely, 2^397603590 is an apocalyptic number.

397603590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397603590 is an abundant number, since it is smaller than the sum of its proper divisors (559678170).

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

397603590 is a wasteful number, since it uses less digits than its factorization.

397603590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42136.

The product of its (nonzero) digits is 153090, while the sum is 42.

The square root of 397603590 is about 19939.9997492477. Note that the first 3 decimals coincide. The cubic root of 397603590 is about 735.3319431735.

The spelling of 397603590 in words is "three hundred ninety-seven million, six hundred three thousand, five hundred ninety".