397025000000 has 126 divisors (see below), whose sum is σ = 984869612934. Its totient is φ = 158800000000.

The previous prime is 397024999997. The next prime is 397025000101. The reversal of 397025000000 is 520793.

It can be written as a sum of positive squares in 9 ways, for example, as 234248256064 + 162776743936 = 483992^2 + 403456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24992060 + ... + 25007940.

Almost surely, 2^397025000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397025000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492434806467).

397025000000 is an abundant number, since it is smaller than the sum of its proper divisors (587844612934).

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

397025000000 is an frugal number, since it uses more digits than its factorization.

397025000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15933 (or 15888 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 26.

Adding to 397025000000 its reverse (520793), we get a palindrome (397025520793).

The spelling of 397025000000 in words is "three hundred ninety-seven billion, twenty-five million", and thus it is an aban number.