397602988752 has 160 divisors (see below), whose sum is σ = 1109021518080. Its totient is φ = 122486640640.

The previous prime is 397602988747. The next prime is 397602988759. The reversal of 397602988752 is 257889206793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397602988759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2959093 + ... + 3090539.

It is an arithmetic number, because the mean of its divisors is an integer number (6931384488).

Almost surely, 2^397602988752 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 397602988752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554510759040).

397602988752 is an abundant number, since it is smaller than the sum of its proper divisors (711418529328).

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

397602988752 is a wasteful number, since it uses less digits than its factorization.

397602988752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131581 (or 131575 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 66.

The spelling of 397602988752 in words is "three hundred ninety-seven billion, six hundred two million, nine hundred eighty-eight thousand, seven hundred fifty-two".