397893468 has 48 divisors (see below), whose sum is σ = 1107187200. Its totient is φ = 108740544.

The previous prime is 397893389. The next prime is 397893469. The reversal of 397893468 is 864398793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397893469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101043 + ... + 104906.

It is an arithmetic number, because the mean of its divisors is an integer number (23066400).

Almost surely, 2^397893468 is an apocalyptic number.

It is an amenable number.

397893468 is an abundant number, since it is smaller than the sum of its proper divisors (709293732).

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

397893468 is a wasteful number, since it uses less digits than its factorization.

397893468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205986 (or 205984 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The square root of 397893468 is about 19947.2671812457. The cubic root of 397893468 is about 735.5106008264.

The spelling of 397893468 in words is "three hundred ninety-seven million, eight hundred ninety-three thousand, four hundred sixty-eight".