397567144 has 32 divisors (see below), whose sum is σ = 837688320. Its totient is φ = 175513536.

The previous prime is 397567141. The next prime is 397567169. The reversal of 397567144 is 441765793.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 397567094 and 397567103.

It is not an unprimeable number, because it can be changed into a prime (397567141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80712 + ... + 85495.

It is an arithmetic number, because the mean of its divisors is an integer number (26177760).

Almost surely, 2^397567144 is an apocalyptic number.

It is an amenable number.

397567144 is an abundant number, since it is smaller than the sum of its proper divisors (440121176).

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

397567144 is a wasteful number, since it uses less digits than its factorization.

397567144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166249 (or 166245 counting only the distinct ones).

The product of its digits is 635040, while the sum is 46.

The square root of 397567144 is about 19939.0858366175. The cubic root of 397567144 is about 735.3094746248.

The spelling of 397567144 in words is "three hundred ninety-seven million, five hundred sixty-seven thousand, one hundred forty-four".