399354 has 16 divisors (see below), whose sum is σ = 807840. Its totient is φ = 131600.

The previous prime is 399353. The next prime is 399379. The reversal of 399354 is 453993.

It is not an unprimeable number, because it can be changed into a prime (399353) 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, 277 + ... + 935.

It is an arithmetic number, because the mean of its divisors is an integer number (50490).

2³⁹⁹³⁵⁴ is an apocalyptic number.

399354 is an abundant number, since it is smaller than the sum of its proper divisors (408486).

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

399354 is a wasteful number, since it uses less digits than its factorization.

399354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its digits is 14580, while the sum is 33.

The square root of 399354 is about 631.9446178266. The cubic root of 399354 is about 73.6409438616.

It can be divided in two parts, 399 and 354, that multiplied together give a triangular number (141246 = T₅₃₁).

The spelling of 399354 in words is "three hundred ninety-nine thousand, three hundred fifty-four".