398197260 has 72 divisors (see below), whose sum is σ = 1249531920. Its totient is φ = 102523008.

The previous prime is 398197237. The next prime is 398197277. The reversal of 398197260 is 62791893.

It is a super-2 number, since 2×398197260² = 317122115743015200, which contains 22 as substring.

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

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, 32922 + ... + 43361.

It is an arithmetic number, because the mean of its divisors is an integer number (17354610).

Almost surely, 2^398197260 is an apocalyptic number.

398197260 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

398197260 is an abundant number, since it is smaller than the sum of its proper divisors (851334660).

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

398197260 is a wasteful number, since it uses less digits than its factorization.

398197260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76327 (or 76322 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 398197260 is about 19954.8806060071. The cubic root of 398197260 is about 735.6977408629.

The spelling of 398197260 in words is "three hundred ninety-eight million, one hundred ninety-seven thousand, two hundred sixty".