44408289 has 16 divisors (see below), whose sum is σ = 61024320. Its totient is φ = 28707840.

The previous prime is 44408227. The next prime is 44408291. The reversal of 44408289 is 98280444.

It is a de Polignac number, because none of the positive numbers 2^k-44408289 is a prime.

It is a super-2 number, since 2×44408289² = 3944192263815042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44408219) 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, 21009 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (3814020).

Almost surely, 2^44408289 is an apocalyptic number.

It is an amenable number.

44408289 is a deficient number, since it is larger than the sum of its proper divisors (16616031).

44408289 is a wasteful number, since it uses less digits than its factorization.

44408289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 44408289 is about 6663.9544566271. The cubic root of 44408289 is about 354.1234447709.

The spelling of 44408289 in words is "forty-four million, four hundred eight thousand, two hundred eighty-nine".