397449 has 24 divisors (see below), whose sum is σ = 640640. Its totient is φ = 235872.

The previous prime is 397433. The next prime is 397459. The reversal of 397449 is 944793.

It is not a de Polignac number, because 397449 - 2⁴ = 397433 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 397449.

It is not an unprimeable number, because it can be changed into a prime (397429) 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, 4992 + ... + 5070.

2³⁹⁷⁴⁴⁹ is an apocalyptic number.

397449 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

397449 is a deficient number, since it is larger than the sum of its proper divisors (243191).

397449 is a wasteful number, since it uses less digits than its factorization.

397449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 138 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 397449 is about 630.4355637177. The cubic root of 397449 is about 73.5236630737.

The spelling of 397449 in words is "three hundred ninety-seven thousand, four hundred forty-nine".