397256000 has 224 divisors, whose sum is σ = 1095524352. Its totient is φ = 141926400.

The previous prime is 397255997. The next prime is 397256029. The reversal of 397256000 is 652793.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 3127937 + ... + 3128063.

Almost surely, 2^397256000 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 397256000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547762176).

397256000 is an abundant number, since it is smaller than the sum of its proper divisors (698268352).

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

397256000 is a wasteful number, since it uses less digits than its factorization.

397256000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 397256000 is about 19931.2819457254. The cubic root of 397256000 is about 735.1176019268.

The spelling of 397256000 in words is "three hundred ninety-seven million, two hundred fifty-six thousand".