344401859 has 4 divisors (see below), whose sum is σ = 345442680. Its totient is φ = 343361040.

The previous prime is 344401831. The next prime is 344401879. The reversal of 344401859 is 958104443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 958104443 = 509 ⋅1882327.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344401859 is a prime.

It is a super-2 number, since 2×344401859² = 237225280965311762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344401879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519914 + ... + 520575.

It is an arithmetic number, because the mean of its divisors is an integer number (86360670).

Almost surely, 2^344401859 is an apocalyptic number.

344401859 is a deficient number, since it is larger than the sum of its proper divisors (1040821).

344401859 is a wasteful number, since it uses less digits than its factorization.

344401859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040820.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 344401859 is about 18558.0672215616. The cubic root of 344401859 is about 700.9523493203.

The spelling of 344401859 in words is "three hundred forty-four million, four hundred one thousand, eight hundred fifty-nine".