399008984 has 32 divisors (see below), whose sum is σ = 824253840. Its totient is φ = 179568000.

The previous prime is 399008977. The next prime is 399008993. The reversal of 399008984 is 489800993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13559 + ... + 31334.

Almost surely, 2^399008984 is an apocalyptic number.

It is an amenable number.

399008984 is an abundant number, since it is smaller than the sum of its proper divisors (425244856).

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

399008984 is a wasteful number, since it uses less digits than its factorization.

399008984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45011 (or 45007 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 399008984 is about 19975.2092354498. The cubic root of 399008984 is about 736.1973074900.

It can be divided in two parts, 39900 and 8984, that added together give a palindrome (48884).

The spelling of 399008984 in words is "three hundred ninety-nine million, eight thousand, nine hundred eighty-four".