344669638 has 8 divisors (see below), whose sum is σ = 518567400. Its totient is φ = 171813840.

The previous prime is 344669627. The next prime is 344669683. The reversal of 344669638 is 836966443.

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

It is a junction number, because it is equal to n+sod(n) for n = 344669591 and 344669600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259663 + ... + 260986.

It is an arithmetic number, because the mean of its divisors is an integer number (64820925).

Almost surely, 2^344669638 is an apocalyptic number.

344669638 is a deficient number, since it is larger than the sum of its proper divisors (173897762).

344669638 is a wasteful number, since it uses less digits than its factorization.

344669638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520982.

The product of its digits is 2239488, while the sum is 49.

The square root of 344669638 is about 18565.2804449596. The cubic root of 344669638 is about 701.1339701879.

The spelling of 344669638 in words is "three hundred forty-four million, six hundred sixty-nine thousand, six hundred thirty-eight".