399741560 has 16 divisors (see below), whose sum is σ = 899418600. Its totient is φ = 159896608.

The previous prime is 399741527. The next prime is 399741581. The reversal of 399741560 is 65147993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4996730 + ... + 4996809.

Almost surely, 2^399741560 is an apocalyptic number.

It is an amenable number.

399741560 is an abundant number, since it is smaller than the sum of its proper divisors (499677040).

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

399741560 is a wasteful number, since it uses less digits than its factorization.

399741560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9993550 (or 9993546 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 399741560 is about 19993.5379560497. The cubic root of 399741560 is about 736.6475820239.

The spelling of 399741560 in words is "three hundred ninety-nine million, seven hundred forty-one thousand, five hundred sixty".