397126464 has 224 divisors, whose sum is σ = 1299179520. Its totient is φ = 104552448.

The previous prime is 397126459. The next prime is 397126481. The reversal of 397126464 is 464621793.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 896227 + ... + 896669.

Almost surely, 2^397126464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397126464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649589760).

397126464 is an abundant number, since it is smaller than the sum of its proper divisors (902053056).

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

397126464 is a wasteful number, since it uses less digits than its factorization.

397126464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 507 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 397126464 is about 19928.0321155903. The cubic root of 397126464 is about 735.0376916207.

The spelling of 397126464 in words is "three hundred ninety-seven million, one hundred twenty-six thousand, four hundred sixty-four".