397036800000 has 864 divisors, whose sum is σ = 1469691011880. Its totient is φ = 103219200000.

The previous prime is 397036799987. The next prime is 397036800029. The reversal of 397036800000 is 8630793.

It can be written as a sum of positive squares in 12 ways, for example, as 382102004736 + 14934795264 = 618144^2 + 122208^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3513599944 + ... + 3513600056.

Almost surely, 2^397036800000 is an apocalyptic number.

397036800000 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 397036800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734845505940).

397036800000 is an abundant number, since it is smaller than the sum of its proper divisors (1072654211880).

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

397036800000 is an equidigital number, since it uses as much as digits as its factorization.

397036800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 397036800000 in words is "three hundred ninety-seven billion, thirty-six million, eight hundred thousand".