399491514 has 24 divisors (see below), whose sum is σ = 897624000. Its totient is φ = 133163676.

The previous prime is 399491509. The next prime is 399491527. The reversal of 399491514 is 415194993.

399491514 is a `hidden beast` number, since 3 + 99 + 49 + 1 + 514 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 399491514.

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, 410514 + ... + 411485.

It is an arithmetic number, because the mean of its divisors is an integer number (37401000).

Almost surely, 2^399491514 is an apocalyptic number.

399491514 is an abundant number, since it is smaller than the sum of its proper divisors (498132486).

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

399491514 is an equidigital number, since it uses as much as digits as its factorization.

399491514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822016 (or 822004 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 399491514 is about 19987.2838074612. The cubic root of 399491514 is about 736.4939542645.

The spelling of 399491514 in words is "three hundred ninety-nine million, four hundred ninety-one thousand, five hundred fourteen".