397230380720 has 40 divisors (see below), whose sum is σ = 923944145040. Its totient is φ = 158826172160.

The previous prime is 397230380707. The next prime is 397230380731. The reversal of 397230380720 is 27083032793.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×397230380720² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836855 + ... + 1222614.

It is an arithmetic number, because the mean of its divisors is an integer number (23098603626).

Almost surely, 2^397230380720 is an apocalyptic number.

It is an amenable number.

397230380720 is an abundant number, since it is smaller than the sum of its proper divisors (526713764320).

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

397230380720 is a wasteful number, since it uses less digits than its factorization.

397230380720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061893 (or 2061887 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 397230380720 in words is "three hundred ninety-seven billion, two hundred thirty million, three hundred eighty thousand, seven hundred twenty".