399452 has 12 divisors (see below), whose sum is σ = 718200. Its totient is φ = 194256.

The previous prime is 399439. The next prime is 399473. The reversal of 399452 is 254993.

It is a congruent number.

It is an unprimeable number.

399452 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202 + ... + 1497.

It is an arithmetic number, because the mean of its divisors is an integer number (59850).

2³⁹⁹⁴⁵² is an apocalyptic number.

It is an amenable number.

399452 is a deficient number, since it is larger than the sum of its proper divisors (318748).

399452 is a wasteful number, since it uses less digits than its factorization.

399452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740 (or 2738 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 399452 is about 632.0221515105. The cubic root of 399452 is about 73.6469671077.

The spelling of 399452 in words is "three hundred ninety-nine thousand, four hundred fifty-two".