399336 has 32 divisors (see below), whose sum is σ = 1141440. Its totient is φ = 114048.

The previous prime is 399283. The next prime is 399353. The reversal of 399336 is 633993.

It is a junction number, because it is equal to n+sod(n) for n = 399297 and 399306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021 + ... + 1356.

It is an arithmetic number, because the mean of its divisors is an integer number (35670).

2³⁹⁹³³⁶ is an apocalyptic number.

It is an amenable number.

399336 is an abundant number, since it is smaller than the sum of its proper divisors (742104).

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

399336 is a wasteful number, since it uses less digits than its factorization.

399336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393 (or 2389 counting only the distinct ones).

The product of its digits is 13122, while the sum is 33.

The square root of 399336 is about 631.9303759118. The cubic root of 399336 is about 73.6398374440.

The spelling of 399336 in words is "three hundred ninety-nine thousand, three hundred thirty-six".