399340702800 has 480 divisors, whose sum is σ = 1538491808000. Its totient is φ = 97798440960.

The previous prime is 399340702763. The next prime is 399340702823. The reversal of 399340702800 is 8207043993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27932454 + ... + 27946746.

Almost surely, 2^399340702800 is an apocalyptic number.

399340702800 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 399340702800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769245904000).

399340702800 is an abundant number, since it is smaller than the sum of its proper divisors (1139151105200).

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

399340702800 is a wasteful number, since it uses less digits than its factorization.

399340702800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14532 (or 14515 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 399340702800 in words is "three hundred ninety-nine billion, three hundred forty million, seven hundred two thousand, eight hundred".