399230 has 32 divisors (see below), whose sum is σ = 804384. Its totient is φ = 141696.

The previous prime is 399227. The next prime is 399239. The reversal of 399230 is 32993.

It is a super-3 number, since 3×399230³ = 190893333070401000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 399230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399239) 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, 4769 + ... + 4851.

It is an arithmetic number, because the mean of its divisors is an integer number (25137).

2³⁹⁹²³⁰ is an apocalyptic number.

399230 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

399230 is a wasteful number, since it uses less digits than its factorization.

399230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 399230 is about 631.8465003464. The cubic root of 399230 is about 73.6333211991.

The spelling of 399230 in words is "three hundred ninety-nine thousand, two hundred thirty".