344036641 has 4 divisors (see below), whose sum is σ = 370501012. Its totient is φ = 317572272.

The previous prime is 344036557. The next prime is 344036669. The reversal of 344036641 is 146630443.

It is a happy number.

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 170851041 + 173185600 = 13071^2 + 13160^2 .

It is a cyclic number.

It is not a de Polignac number, because 344036641 - 2⁷ = 344036513 is a prime.

It is a super-2 number, since 2×344036641² = 236722420701125762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344036681) 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, 13232166 + ... + 13232191.

It is an arithmetic number, because the mean of its divisors is an integer number (92625253).

Almost surely, 2^344036641 is an apocalyptic number.

It is an amenable number.

344036641 is a deficient number, since it is larger than the sum of its proper divisors (26464371).

344036641 is a wasteful number, since it uses less digits than its factorization.

344036641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26464370.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 344036641 is about 18548.2247398504. The cubic root of 344036641 is about 700.7044887151.

The spelling of 344036641 in words is "three hundred forty-four million, thirty-six thousand, six hundred forty-one".