3440745664 has 28 divisors (see below), whose sum is σ = 6831749608. Its totient is φ = 1719360000.

The previous prime is 3440745653. The next prime is 3440745667. The reversal of 3440745664 is 4665470443.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3440745664.

It is not an unprimeable number, because it can be changed into a prime (3440745667) 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, 100339 + ... + 130189.

Almost surely, 2^3440745664 is an apocalyptic number.

It is an amenable number.

3440745664 is a deficient number, since it is larger than the sum of its proper divisors (3391003944).

3440745664 is a wasteful number, since it uses less digits than its factorization.

3440745664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31664 (or 31654 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 43.

The square root of 3440745664 is about 58657.8695828616. The cubic root of 3440745664 is about 1509.6775277351.

The spelling of 3440745664 in words is "three billion, four hundred forty million, seven hundred forty-five thousand, six hundred sixty-four".