399036 has 24 divisors (see below), whose sum is σ = 1016064. Its totient is φ = 120880.

The previous prime is 399031. The next prime is 399043. The reversal of 399036 is 630993.

It is a junction number, because it is equal to n+sod(n) for n = 398994 and 399012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399031) 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, 1380 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (42336).

2³⁹⁹⁰³⁶ is an apocalyptic number.

It is an amenable number.

399036 is an abundant number, since it is smaller than the sum of its proper divisors (617028).

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

399036 is a wasteful number, since it uses less digits than its factorization.

399036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041 (or 3039 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 399036 is about 631.6929633928. The cubic root of 399036 is about 73.6213922536.

The spelling of 399036 in words is "three hundred ninety-nine thousand, thirty-six".