399270988800 has 1056 divisors, whose sum is σ = 1530461002560. Its totient is φ = 101921587200.

The previous prime is 399270988751. The next prime is 399270988813. The reversal of 399270988800 is 8889072993.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2068761504 + ... + 2068761696.

Almost surely, 2^399270988800 is an apocalyptic number.

399270988800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399270988800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765230501280).

399270988800 is an abundant number, since it is smaller than the sum of its proper divisors (1131190013760).

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

399270988800 is a wasteful number, since it uses less digits than its factorization.

399270988800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 399270988800 in words is "three hundred ninety-nine billion, two hundred seventy million, nine hundred eighty-eight thousand, eight hundred".