399226575 has 48 divisors (see below), whose sum is σ = 757987200. Its totient is φ = 183369600.

The previous prime is 399226567. The next prime is 399226591. The reversal of 399226575 is 575622993.

It is not a de Polignac number, because 399226575 - 2³ = 399226567 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2941 + ... + 28409.

It is an arithmetic number, because the mean of its divisors is an integer number (15791400).

Almost surely, 2^399226575 is an apocalyptic number.

399226575 is a deficient number, since it is larger than the sum of its proper divisors (358760625).

399226575 is a wasteful number, since it uses less digits than its factorization.

399226575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25512 (or 25507 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 48.

The square root of 399226575 is about 19980.6550192930. The cubic root of 399226575 is about 736.3311063140.

The spelling of 399226575 in words is "three hundred ninety-nine million, two hundred twenty-six thousand, five hundred seventy-five".