399927416 has 24 divisors (see below), whose sum is σ = 872291520. Its totient is φ = 171397296.

The previous prime is 399927389. The next prime is 399927419. The reversal of 399927416 is 614729993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399927419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 509720 + ... + 510503.

It is an arithmetic number, because the mean of its divisors is an integer number (36345480).

Almost surely, 2^399927416 is an apocalyptic number.

It is an amenable number.

399927416 is an abundant number, since it is smaller than the sum of its proper divisors (472364104).

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

399927416 is a wasteful number, since it uses less digits than its factorization.

399927416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020243 (or 1020232 counting only the distinct ones).

The product of its digits is 734832, while the sum is 50.

The square root of 399927416 is about 19998.1853176732. The cubic root of 399927416 is about 736.7617300750.

The spelling of 399927416 in words is "three hundred ninety-nine million, nine hundred twenty-seven thousand, four hundred sixteen".