399041575 has 12 divisors (see below), whose sum is σ = 495189288. Its totient is φ = 318989600.

The previous prime is 399041569. The next prime is 399041581. The reversal of 399041575 is 575140993.

It is an interprime number because it is at equal distance from previous prime (399041569) and next prime (399041581).

It is not a de Polignac number, because 399041575 - 2⁵ = 399041543 is a prime.

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, 31980 + ... + 42670.

It is an arithmetic number, because the mean of its divisors is an integer number (41265774).

Almost surely, 2^399041575 is an apocalyptic number.

399041575 is a deficient number, since it is larger than the sum of its proper divisors (96147713).

399041575 is a wasteful number, since it uses less digits than its factorization.

399041575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12194 (or 12189 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 399041575 is about 19976.0250049904. The cubic root of 399041575 is about 736.2173511099.

The spelling of 399041575 in words is "three hundred ninety-nine million, forty-one thousand, five hundred seventy-five".