399337296248 has 64 divisors (see below), whose sum is σ = 824748220800. Its totient is φ = 179757717120.

The previous prime is 399337296229. The next prime is 399337296301. The reversal of 399337296248 is 842692733993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36500363 + ... + 36511301.

It is an arithmetic number, because the mean of its divisors is an integer number (12886690950).

Almost surely, 2^399337296248 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 399337296248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412374110400).

399337296248 is an abundant number, since it is smaller than the sum of its proper divisors (425410924552).

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

399337296248 is a wasteful number, since it uses less digits than its factorization.

399337296248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14940 (or 14936 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 65.

The spelling of 399337296248 in words is "three hundred ninety-nine billion, three hundred thirty-seven million, two hundred ninety-six thousand, two hundred forty-eight".