399830374 has 16 divisors (see below), whose sum is σ = 629591040. Its totient is φ = 190185480.

The previous prime is 399830359. The next prime is 399830393. The reversal of 399830374 is 473038993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50994 + ... + 58309.

It is an arithmetic number, because the mean of its divisors is an integer number (39349440).

Almost surely, 2^399830374 is an apocalyptic number.

399830374 is a deficient number, since it is larger than the sum of its proper divisors (229760666).

399830374 is a wasteful number, since it uses less digits than its factorization.

399830374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109395.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 399830374 is about 19995.7589003268. The cubic root of 399830374 is about 736.7021337478.

The spelling of 399830374 in words is "three hundred ninety-nine million, eight hundred thirty thousand, three hundred seventy-four".