399314342 has 16 divisors (see below), whose sum is σ = 692232480. Its totient is φ = 169211328.

The previous prime is 399314329. The next prime is 399314347. The reversal of 399314342 is 243413993.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 399314296 and 399314305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399314347) 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, 158993 + ... + 161484.

It is an arithmetic number, because the mean of its divisors is an integer number (43264530).

Almost surely, 2^399314342 is an apocalyptic number.

399314342 is a deficient number, since it is larger than the sum of its proper divisors (292918138).

399314342 is a wasteful number, since it uses less digits than its factorization.

399314342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320575.

The product of its digits is 69984, while the sum is 38.

The square root of 399314342 is about 19982.8511979647. The cubic root of 399314342 is about 736.3850613369.

The spelling of 399314342 in words is "three hundred ninety-nine million, three hundred fourteen thousand, three hundred forty-two".