40444045 has 4 divisors (see below), whose sum is σ = 48532860. Its totient is φ = 32355232.

The previous prime is 40444031. The next prime is 40444091. The reversal of 40444045 is 54044404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13704804 + 26739241 = 3702^2 + 5171^2 .

It is a cyclic number.

It is not a de Polignac number, because 40444045 - 2⁵ = 40444013 is a prime.

It is a congruent number.

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, 4044400 + ... + 4044409.

It is an arithmetic number, because the mean of its divisors is an integer number (12133215).

Almost surely, 2^40444045 is an apocalyptic number.

It is an amenable number.

40444045 is a deficient number, since it is larger than the sum of its proper divisors (8088815).

40444045 is an equidigital number, since it uses as much as digits as its factorization.

40444045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8088814.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 40444045 is about 6359.5632711689. The cubic root of 40444045 is about 343.2560455894.

Adding to 40444045 its reverse (54044404), we get a palindrome (94488449).

The spelling of 40444045 in words is "forty million, four hundred forty-four thousand, forty-five".