344402818 has 8 divisors (see below), whose sum is σ = 519458940. Its totient is φ = 171249840.

The previous prime is 344402809. The next prime is 344402827. The reversal of 344402818 is 818204443.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (344402809) and next prime (344402827).

It can be written as a sum of positive squares in 2 ways, for example, as 341399529 + 3003289 = 18477^2 + 1733^2 .

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

It is a super-2 number, since 2×344402818² = 237226602092682248, which contains 22 as substring.

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, 475333 + ... + 476056.

Almost surely, 2^344402818 is an apocalyptic number.

344402818 is a deficient number, since it is larger than the sum of its proper divisors (175056122).

344402818 is a wasteful number, since it uses less digits than its factorization.

344402818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951572.

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 344402818 is about 18558.0930593636. The cubic root of 344402818 is about 700.9529999292.

The spelling of 344402818 in words is "three hundred forty-four million, four hundred two thousand, eight hundred eighteen".