397444000 has 96 divisors (see below), whose sum is σ = 991763136. Its totient is φ = 156499200.

The previous prime is 397443967. The next prime is 397444009. The reversal of 397444000 is 444793.

It is not an unprimeable number, because it can be changed into a prime (397444009) 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, 267259 + ... + 268741.

It is an arithmetic number, because the mean of its divisors is an integer number (10330866).

Almost surely, 2^397444000 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 397444000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495881568).

397444000 is an abundant number, since it is smaller than the sum of its proper divisors (594319136).

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

397444000 is a wasteful number, since it uses less digits than its factorization.

397444000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 397444000 is about 19935.9975922952. The cubic root of 397444000 is about 735.2335475754.

Adding to 397444000 its reverse (444793), we get a palindrome (397888793).

It can be divided in two parts, 3974 and 44000, that added together give a palindrome (47974).

The spelling of 397444000 in words is "three hundred ninety-seven million, four hundred forty-four thousand".