3442640945 has 16 divisors (see below), whose sum is σ = 4192780800. Its totient is φ = 2713129344.

The previous prime is 3442640941. The next prime is 3442640959. The reversal of 3442640945 is 5490462443.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3442640945 - 2² = 3442640941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3442640941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325856 + ... + 336254.

It is an arithmetic number, because the mean of its divisors is an integer number (262048800).

Almost surely, 2^3442640945 is an apocalyptic number.

It is an amenable number.

3442640945 is a deficient number, since it is larger than the sum of its proper divisors (750139855).

3442640945 is a wasteful number, since it uses less digits than its factorization.

3442640945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11384.

The product of its (nonzero) digits is 414720, while the sum is 41.

The square root of 3442640945 is about 58674.0227443116. The cubic root of 3442640945 is about 1509.9546709490.

The spelling of 3442640945 in words is "three billion, four hundred forty-two million, six hundred forty thousand, nine hundred forty-five".