399760480 has 48 divisors (see below), whose sum is σ = 1079356320. Its totient is φ = 137060352.

The previous prime is 399760441. The next prime is 399760489. The reversal of 399760480 is 84067993.

It is a self number, because there is not a number n which added to its sum of digits gives 399760480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399760489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177345 + ... + 179584.

It is an arithmetic number, because the mean of its divisors is an integer number (22486590).

Almost surely, 2^399760480 is an apocalyptic number.

It is an amenable number.

399760480 is an abundant number, since it is smaller than the sum of its proper divisors (679595840).

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

399760480 is a wasteful number, since it uses less digits than its factorization.

399760480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356951 (or 356943 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 399760480 is about 19994.0111033279. The cubic root of 399760480 is about 736.6592038264.

The spelling of 399760480 in words is "three hundred ninety-nine million, seven hundred sixty thousand, four hundred eighty".