399224836080 has 560 divisors, whose sum is σ = 1594370257344. Its totient is φ = 91027722240.

The previous prime is 399224836067. The next prime is 399224836093. The reversal of 399224836080 is 80638422993.

It is a happy number.

399224836080 is a `hidden beast` number, since 3 + 9 + 9 + 2 + 24 + 8 + 3 + 608 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (399224836067) and next prime (399224836093).

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 212692102 + ... + 212693978.

Almost surely, 2^399224836080 is an apocalyptic number.

399224836080 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 399224836080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797185128672).

399224836080 is an abundant number, since it is smaller than the sum of its proper divisors (1195145421264).

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

399224836080 is a wasteful number, since it uses less digits than its factorization.

399224836080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 399224836080 in words is "three hundred ninety-nine billion, two hundred twenty-four million, eight hundred thirty-six thousand, eighty".