399662096480 has 96 divisors (see below), whose sum is σ = 967782816000. Its totient is φ = 155884764672.

The previous prime is 399662096453. The next prime is 399662096489. The reversal of 399662096480 is 84690266993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399662096489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4072631 + ... + 4169609.

It is an arithmetic number, because the mean of its divisors is an integer number (10081071000).

Almost surely, 2^399662096480 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 399662096480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483891408000).

399662096480 is an abundant number, since it is smaller than the sum of its proper divisors (568120719520).

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

399662096480 is a wasteful number, since it uses less digits than its factorization.

399662096480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97636 (or 97628 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 62.

The spelling of 399662096480 in words is "three hundred ninety-nine billion, six hundred sixty-two million, ninety-six thousand, four hundred eighty".