399574032216 has 256 divisors, whose sum is σ = 1083620160000. Its totient is φ = 122510610432.

The previous prime is 399574032203. The next prime is 399574032269. The reversal of 399574032216 is 612230475993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 621421191 + ... + 621421833.

It is an arithmetic number, because the mean of its divisors is an integer number (4232891250).

Almost surely, 2^399574032216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399574032216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541810080000).

399574032216 is an abundant number, since it is smaller than the sum of its proper divisors (684046127784).

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

399574032216 is a wasteful number, since it uses less digits than its factorization.

399574032216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 399574032216 in words is "three hundred ninety-nine billion, five hundred seventy-four million, thirty-two thousand, two hundred sixteen".