344402893 has 4 divisors (see below), whose sum is σ = 346596700. Its totient is φ = 342209088.

The previous prime is 344402843. The next prime is 344402899. The reversal of 344402893 is 398204443.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 254019844 + 90383049 = 15938^2 + 9507^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344402893 is a prime.

It is a super-2 number, since 2×344402893² = 237226705413538898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344402899) 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, 1096668 + ... + 1096981.

It is an arithmetic number, because the mean of its divisors is an integer number (86649175).

Almost surely, 2^344402893 is an apocalyptic number.

It is an amenable number.

344402893 is a deficient number, since it is larger than the sum of its proper divisors (2193807).

344402893 is a wasteful number, since it uses less digits than its factorization.

344402893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193806.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 344402893 is about 18558.0950800453. The cubic root of 344402893 is about 700.9530508109.

The spelling of 344402893 in words is "three hundred forty-four million, four hundred two thousand, eight hundred ninety-three".