399337390144 has 336 divisors, whose sum is σ = 1066850231040. Its totient is φ = 146240640000.

The previous prime is 399337390141. The next prime is 399337390229. The reversal of 399337390144 is 441093733993.

It is not an unprimeable number, because it can be changed into a prime (399337390141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85858219 + ... + 85862869.

Almost surely, 2^399337390144 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 399337390144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (533425115520).

399337390144 is an abundant number, since it is smaller than the sum of its proper divisors (667512840896).

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

399337390144 is a wasteful number, since it uses less digits than its factorization.

399337390144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4838 (or 4821 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 55.

The spelling of 399337390144 in words is "three hundred ninety-nine billion, three hundred thirty-seven million, three hundred ninety thousand, one hundred forty-four".