344072838 has 16 divisors (see below), whose sum is σ = 694578240. Its totient is φ = 113618856.

The previous prime is 344072821. The next prime is 344072863. The reversal of 344072838 is 838270443.

It is a super-2 number, since 2×344072838² = 236772235698748488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 344072796 and 344072805.

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, 267328 + ... + 268611.

It is an arithmetic number, because the mean of its divisors is an integer number (43411140).

Almost surely, 2^344072838 is an apocalyptic number.

344072838 is an abundant number, since it is smaller than the sum of its proper divisors (350505402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344072838 is a wasteful number, since it uses less digits than its factorization.

344072838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536051.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 344072838 is about 18549.2004679447. The cubic root of 344072838 is about 700.7290621742.

The spelling of 344072838 in words is "three hundred forty-four million, seventy-two thousand, eight hundred thirty-eight".