399372 has 24 divisors (see below), whose sum is σ = 973056. Its totient is φ = 127248.

The previous prime is 399353. The next prime is 399379. The reversal of 399372 is 273993.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (399379) by changing a digit.

399372 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 7 ways as a sum of consecutive naturals, for example, 448 + ... + 999.

It is an arithmetic number, because the mean of its divisors is an integer number (40544).

2³⁹⁹³⁷² is an apocalyptic number.

It is an amenable number.

399372 is an abundant number, since it is smaller than the sum of its proper divisors (573684).

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

399372 is a wasteful number, since it uses less digits than its factorization.

399372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477 (or 1475 counting only the distinct ones).

The product of its digits is 10206, while the sum is 33.

The square root of 399372 is about 631.9588594205. The cubic root of 399372 is about 73.6420502460.

It can be divided in two parts, 3993 and 72, that multiplied together give a cube (287496 = 66³).

The spelling of 399372 in words is "three hundred ninety-nine thousand, three hundred seventy-two".