397022976 has 216 divisors, whose sum is σ = 1326474240. Its totient is φ = 111863808.

The previous prime is 397022971. The next prime is 397023001. The reversal of 397022976 is 679220793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397022971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1661065 + ... + 1661303.

Almost surely, 2^397022976 is an apocalyptic number.

397022976 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397022976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663237120).

397022976 is an abundant number, since it is smaller than the sum of its proper divisors (929451264).

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

397022976 is a wasteful number, since it uses less digits than its factorization.

397022976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 397022976 is about 19925.4354030219. The cubic root of 397022976 is about 734.9738377471.

The spelling of 397022976 in words is "three hundred ninety-seven million, twenty-two thousand, nine hundred seventy-six".