399326 has 8 divisors (see below), whose sum is σ = 625104. Its totient is φ = 190960.

The previous prime is 399283. The next prime is 399353. The reversal of 399326 is 623993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×399326² = 318922508552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 399292 and 399301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4295 + ... + 4386.

It is an arithmetic number, because the mean of its divisors is an integer number (78138).

2³⁹⁹³²⁶ is an apocalyptic number.

399326 is a deficient number, since it is larger than the sum of its proper divisors (225778).

399326 is a wasteful number, since it uses less digits than its factorization.

399326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8706.

The product of its digits is 8748, while the sum is 32.

The square root of 399326 is about 631.9224635982. The cubic root of 399326 is about 73.6392227532.

The spelling of 399326 in words is "three hundred ninety-nine thousand, three hundred twenty-six".