399582720000 has 1300 divisors, whose sum is σ = 1560500305056. Its totient is φ = 101744640000.

The previous prime is 399582719993. The next prime is 399582720013. The reversal of 399582720000 is 27285993.

399582720000 is a `hidden beast` number, since 399 + 58 + 2 + 7 + 200 + 0 + 0 = 666.

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 99 ways as a sum of consecutive naturals, for example, 8501759977 + ... + 8501760023.

Almost surely, 2^399582720000 is an apocalyptic number.

399582720000 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 399582720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780250152528).

399582720000 is an abundant number, since it is smaller than the sum of its proper divisors (1160917585056).

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

399582720000 is an frugal number, since it uses more digits than its factorization.

399582720000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 399582720000 in words is "three hundred ninety-nine billion, five hundred eighty-two million, seven hundred twenty thousand".