399414 has 8 divisors (see below), whose sum is σ = 798840. Its totient is φ = 133136.

The previous prime is 399409. The next prime is 399433. The reversal of 399414 is 414993.

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

399414 is an admirable number.

It is a congruent number.

It is an unprimeable number.

399414 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 3 ways as a sum of consecutive naturals, for example, 33279 + ... + 33290.

It is an arithmetic number, because the mean of its divisors is an integer number (99855).

2³⁹⁹⁴¹⁴ is an apocalyptic number.

399414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

399414 is a wasteful number, since it uses less digits than its factorization.

399414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66574.

The product of its digits is 3888, while the sum is 30.

The square root of 399414 is about 631.9920885581. The cubic root of 399414 is about 73.6446316803.

It can be divided in two parts, 39 and 9414, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 399414 in words is "three hundred ninety-nine thousand, four hundred fourteen".