399059225 has 12 divisors (see below), whose sum is σ = 495125676. Its totient is φ = 319058880.

The previous prime is 399059203. The next prime is 399059231. The reversal of 399059225 is 522950993.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 56957209 + 342102016 = 7547^2 + 18496^2 .

It is not a de Polignac number, because 399059225 - 2¹⁰ = 399058201 is a prime.

It is a Duffinian 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, 51719 + ... + 58931.

It is an arithmetic number, because the mean of its divisors is an integer number (41260473).

Almost surely, 2^399059225 is an apocalyptic number.

It is an amenable number.

399059225 is a deficient number, since it is larger than the sum of its proper divisors (96066451).

399059225 is a wasteful number, since it uses less digits than its factorization.

399059225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9436 (or 9431 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 399059225 is about 19976.4667796885. The cubic root of 399059225 is about 736.2282054882.

The spelling of 399059225 in words is "three hundred ninety-nine million, fifty-nine thousand, two hundred twenty-five".