44045642 has 8 divisors (see below), whose sum is σ = 66343332. Its totient is φ = 21931200.

The previous prime is 44045633. The next prime is 44045669. The reversal of 44045642 is 24654044.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40081561 + 3964081 = 6331^2 + 1991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45209 + ... + 46172.

Almost surely, 2^44045642 is an apocalyptic number.

44045642 is a deficient number, since it is larger than the sum of its proper divisors (22297690).

44045642 is a wasteful number, since it uses less digits than its factorization.

44045642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91624.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 44045642 is about 6636.6890841744. The cubic root of 44045642 is about 353.1568611657.

Adding to 44045642 its reverse (24654044), we get a palindrome (68699686).

The spelling of 44045642 in words is "forty-four million, forty-five thousand, six hundred forty-two".