399127560 has 64 divisors (see below), whose sum is σ = 1289494080. Its totient is φ = 98246400.

The previous prime is 399127541. The next prime is 399127601. The reversal of 399127560 is 65721993.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126366 + ... + 129485.

It is an arithmetic number, because the mean of its divisors is an integer number (20148345).

Almost surely, 2^399127560 is an apocalyptic number.

399127560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

399127560 is an abundant number, since it is smaller than the sum of its proper divisors (890366520).

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

399127560 is a wasteful number, since it uses less digits than its factorization.

399127560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255878 (or 255874 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 399127560 is about 19978.1770940194. The cubic root of 399127560 is about 736.2702270562.

The spelling of 399127560 in words is "three hundred ninety-nine million, one hundred twenty-seven thousand, five hundred sixty".