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397230 = 23513241

397230 has 16 divisors (see below), whose sum is σ = 953424. Its totient is φ = 105920.

The previous prime is 397223. The next prime is 397237. The reversal of 397230 is 32793.

It is an interprime number because it is at equal distance from previous prime (397223) and next prime (397237).

It is a self number, because there is not a number n which added to its sum of digits gives 397230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397237) by changing a digit.

397230 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6591 + ... + 6650.

It is an arithmetic number, because the mean of its divisors is an integer number (59589).

2397230 is an apocalyptic number.

397230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397230 is an abundant number, since it is smaller than the sum of its proper divisors (556194).

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

397230 is a wasteful number, since it uses less digits than its factorization.

397230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13251.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 397230 is about 630.2618503448. The cubic root of 397230 is about 73.5101564011.

The spelling of 397230 in words is "three hundred ninety-seven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 13241 26482 39723 66205 79446 132410 198615 397230