399061752 has 16 divisors (see below), whose sum is σ = 997654440. Its totient is φ = 133020576.

The previous prime is 399061739. The next prime is 399061787. The reversal of 399061752 is 257160993.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 8313763 + ... + 8313810.

Almost surely, 2^399061752 is an apocalyptic number.

It is an amenable number.

399061752 is an abundant number, since it is smaller than the sum of its proper divisors (598592688).

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

399061752 is a wasteful number, since it uses less digits than its factorization.

399061752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16627582 (or 16627578 counting only the distinct ones).

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

The square root of 399061752 is about 19976.5300290115. The cubic root of 399061752 is about 736.2297595138.

The spelling of 399061752 in words is "three hundred ninety-nine million, sixty-one thousand, seven hundred fifty-two".