44290881 has 48 divisors (see below), whose sum is σ = 71547840. Its totient is φ = 27293760.

The previous prime is 44290871. The next prime is 44290889. The reversal of 44290881 is 18809244.

It is not a de Polignac number, because 44290881 - 2¹¹ = 44288833 is a prime.

It is a super-2 number, since 2×44290881² = 3923364279512322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44290889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244611 + ... + 244791.

It is an arithmetic number, because the mean of its divisors is an integer number (1490580).

Almost surely, 2^44290881 is an apocalyptic number.

It is an amenable number.

44290881 is a deficient number, since it is larger than the sum of its proper divisors (27256959).

44290881 is a wasteful number, since it uses less digits than its factorization.

44290881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 44290881 is about 6655.1394425662. The cubic root of 44290881 is about 353.8110885191.

The spelling of 44290881 in words is "forty-four million, two hundred ninety thousand, eight hundred eighty-one".