397430 has 16 divisors (see below), whose sum is σ = 780624. Its totient is φ = 144480.

The previous prime is 397429. The next prime is 397433. The reversal of 397430 is 34793.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 397430.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 397430.

It is not an unprimeable number, because it can be changed into a prime (397433) 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, 1697 + ... + 1916.

It is an arithmetic number, because the mean of its divisors is an integer number (48789).

2³⁹⁷⁴³⁰ is an apocalyptic number.

397430 is a deficient number, since it is larger than the sum of its proper divisors (383194).

397430 is a wasteful number, since it uses less digits than its factorization.

397430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 397430 is about 630.4204945907. The cubic root of 397430 is about 73.5224914585.

It can be divided in two parts, 3974 and 30, that added together give a palindrome (4004).

The spelling of 397430 in words is "three hundred ninety-seven thousand, four hundred thirty".