397800149796 has 81 divisors (see below), whose sum is σ = 1169799767409. Its totient is φ = 113649617088.

The previous prime is 397800149783. The next prime is 397800149819. The reversal of 397800149796 is 697941008793.

The square root of 397800149796 is 630714.

It is a perfect power (a square), and thus also a powerful number.

397800149796 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 134901944100 + 262898205696 = 367290^2 + 512736^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 26482480 + ... + 26497496.

Almost surely, 2^397800149796 is an apocalyptic number.

397800149796 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

397800149796 is the 630714-th square number.

It is an amenable number.

397800149796 is an abundant number, since it is smaller than the sum of its proper divisors (771999617613).

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

397800149796 is an equidigital number, since it uses as much as digits as its factorization.

397800149796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30058 (or 15029 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 397800149796 in words is "three hundred ninety-seven billion, eight hundred million, one hundred forty-nine thousand, seven hundred ninety-six".