345992638 has 16 divisors (see below), whose sum is σ = 534159360. Its totient is φ = 168010456.

The previous prime is 345992629. The next prime is 345992677. The reversal of 345992638 is 836299543.

It is a junction number, because it is equal to n+sod(n) for n = 345992591 and 345992600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7870 + ... + 27457.

It is an arithmetic number, because the mean of its divisors is an integer number (33384960).

Almost surely, 2^345992638 is an apocalyptic number.

345992638 is a deficient number, since it is larger than the sum of its proper divisors (188166722).

345992638 is a wasteful number, since it uses less digits than its factorization.

345992638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35471.

The product of its digits is 1399680, while the sum is 49.

The square root of 345992638 is about 18600.8773448996. The cubic root of 345992638 is about 702.0299159606.

The spelling of 345992638 in words is "three hundred forty-five million, nine hundred ninety-two thousand, six hundred thirty-eight".