399769119 has 6 divisors (see below), whose sum is σ = 577444296. Its totient is φ = 266512740.

The previous prime is 399769103. The next prime is 399769129. The reversal of 399769119 is 911967993.

It is not a de Polignac number, because 399769119 - 2⁴ = 399769103 is a prime.

It is a super-2 number, since 2×399769119² = 319630697012072322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399769129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22209387 + ... + 22209404.

It is an arithmetic number, because the mean of its divisors is an integer number (96240716).

Almost surely, 2^399769119 is an apocalyptic number.

399769119 is a deficient number, since it is larger than the sum of its proper divisors (177675177).

399769119 is a wasteful number, since it uses less digits than its factorization.

399769119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44418797 (or 44418794 counting only the distinct ones).

The product of its digits is 826686, while the sum is 54.

The square root of 399769119 is about 19994.2271418527. The cubic root of 399769119 is about 736.6645102981.

The spelling of 399769119 in words is "three hundred ninety-nine million, seven hundred sixty-nine thousand, one hundred nineteen".