398263575 has 12 divisors (see below), whose sum is σ = 658462568. Its totient is φ = 212407200.

The previous prime is 398263553. The next prime is 398263609. The reversal of 398263575 is 575362893.

It is a happy number.

It is not a de Polignac number, because 398263575 - 2²² = 394069271 is a prime.

It is a super-2 number, since 2×398263575² = 317227750343561250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2655016 + ... + 2655165.

Almost surely, 2^398263575 is an apocalyptic number.

398263575 is a deficient number, since it is larger than the sum of its proper divisors (260198993).

398263575 is a wasteful number, since it uses less digits than its factorization.

398263575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310194 (or 5310189 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

The square root of 398263575 is about 19956.5421604044. The cubic root of 398263575 is about 735.7385791546.

The spelling of 398263575 in words is "three hundred ninety-eight million, two hundred sixty-three thousand, five hundred seventy-five".