44121290 has 16 divisors (see below), whose sum is σ = 84090312. Its totient is φ = 16610304.

The previous prime is 44121271. The next prime is 44121293. The reversal of 44121290 is 9212144.

It can be written as a sum of positive squares in 4 ways, for example, as 41615401 + 2505889 = 6451^2 + 1583^2 .

It is not an unprimeable number, because it can be changed into a prime (44121293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129599 + ... + 129938.

Almost surely, 2^44121290 is an apocalyptic number.

44121290 is a deficient number, since it is larger than the sum of its proper divisors (39969022).

44121290 is a wasteful number, since it uses less digits than its factorization.

44121290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259561.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 44121290 is about 6642.3858665392. The cubic root of 44121290 is about 353.3589267882.

The spelling of 44121290 in words is "forty-four million, one hundred twenty-one thousand, two hundred ninety".