42944415 has 16 divisors (see below), whose sum is σ = 69255168. Its totient is φ = 22722336.

The previous prime is 42944413. The next prime is 42944437. The reversal of 42944415 is 51444924.

It is not a de Polignac number, because 42944415 - 2¹ = 42944413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42944413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9367 + ... + 13176.

It is an arithmetic number, because the mean of its divisors is an integer number (4328448).

Almost surely, 2^42944415 is an apocalyptic number.

42944415 is a deficient number, since it is larger than the sum of its proper divisors (26310753).

42944415 is a wasteful number, since it uses less digits than its factorization.

42944415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22678.

The product of its digits is 23040, while the sum is 33.

The square root of 42944415 is about 6553.1988372092. The cubic root of 42944415 is about 350.1887825102.

It can be divided in two parts, 429 and 44415, that added together give a palindrome (44844).

The spelling of 42944415 in words is "forty-two million, nine hundred forty-four thousand, four hundred fifteen".