397868448 has 48 divisors (see below), whose sum is σ = 1056162240. Its totient is φ = 131129856.

The previous prime is 397868407. The next prime is 397868483. The reversal of 397868448 is 844868793.

It is a tau number, because it is divible by the number of its divisors (48).

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, 14740 + ... + 31827.

It is an arithmetic number, because the mean of its divisors is an integer number (22003380).

Almost surely, 2^397868448 is an apocalyptic number.

It is an amenable number.

397868448 is an abundant number, since it is smaller than the sum of its proper divisors (658293792).

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

397868448 is a wasteful number, since it uses less digits than its factorization.

397868448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46669 (or 46661 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The square root of 397868448 is about 19946.6400178075. The cubic root of 397868448 is about 735.4951839184.

The spelling of 397868448 in words is "three hundred ninety-seven million, eight hundred sixty-eight thousand, four hundred forty-eight".