42944465 has 16 divisors (see below), whose sum is σ = 57438720. Its totient is φ = 30631680.

The previous prime is 42944453. The next prime is 42944477. The reversal of 42944465 is 56444924.

It is an interprime number because it is at equal distance from previous prime (42944453) and next prime (42944477).

It is not a de Polignac number, because 42944465 - 2¹² = 42940369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11681 + ... + 14910.

It is an arithmetic number, because the mean of its divisors is an integer number (3589920).

Almost surely, 2^42944465 is an apocalyptic number.

It is an amenable number.

42944465 is a deficient number, since it is larger than the sum of its proper divisors (14494255).

42944465 is a wasteful number, since it uses less digits than its factorization.

42944465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26632.

The product of its digits is 138240, while the sum is 38.

The square root of 42944465 is about 6553.2026521389. The cubic root of 42944465 is about 350.1889184179.

The spelling of 42944465 in words is "forty-two million, nine hundred forty-four thousand, four hundred sixty-five".