344262130640 has 40 divisors (see below), whose sum is σ = 800669144520. Its totient is φ = 137660174336.

The previous prime is 344262130591. The next prime is 344262130657. The reversal of 344262130640 is 46031262443.

It can be written as a sum of positive squares in 4 ways, for example, as 114065605696 + 230196524944 = 337736^2 + 479788^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 344262130640.

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, 449429 + ... + 943668.

It is an arithmetic number, because the mean of its divisors is an integer number (20016728613).

Almost surely, 2^344262130640 is an apocalyptic number.

It is an amenable number.

344262130640 is an abundant number, since it is smaller than the sum of its proper divisors (456407013880).

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

344262130640 is a wasteful number, since it uses less digits than its factorization.

344262130640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396199 (or 1396193 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The spelling of 344262130640 in words is "three hundred forty-four billion, two hundred sixty-two million, one hundred thirty thousand, six hundred forty".