399560244 has 24 divisors (see below), whose sum is σ = 945080640. Its totient is φ = 131361984.

The previous prime is 399560237. The next prime is 399560251. The reversal of 399560244 is 442065993.

It is an interprime number because it is at equal distance from previous prime (399560237) and next prime (399560251).

It is a junction number, because it is equal to n+sod(n) for n = 399560196 and 399560205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227184 + ... + 228935.

It is an arithmetic number, because the mean of its divisors is an integer number (39378360).

Almost surely, 2^399560244 is an apocalyptic number.

It is an amenable number.

399560244 is an abundant number, since it is smaller than the sum of its proper divisors (545520396).

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

399560244 is a wasteful number, since it uses less digits than its factorization.

399560244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456199 (or 456197 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 399560244 is about 19989.0030766919. The cubic root of 399560244 is about 736.5361882253.

The spelling of 399560244 in words is "three hundred ninety-nine million, five hundred sixty thousand, two hundred forty-four".