44872289 has 20 divisors (see below), whose sum is σ = 57140400. Its totient is φ = 34944840.

The previous prime is 44872279. The next prime is 44872339. The reversal of 44872289 is 98227844.

It is not a de Polignac number, because 44872289 - 2⁸ = 44872033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44872229) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25562 + ... + 27260.

It is an arithmetic number, because the mean of its divisors is an integer number (2857020).

Almost surely, 2^44872289 is an apocalyptic number.

44872289 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

44872289 is a deficient number, since it is larger than the sum of its proper divisors (12268111).

44872289 is an equidigital number, since it uses as much as digits as its factorization.

44872289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1717 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 44872289 is about 6698.6781531881. The cubic root of 44872289 is about 355.3525268878.

It can be divided in two parts, 4487 and 2289, that added together give a palindrome (6776).

The spelling of 44872289 in words is "forty-four million, eight hundred seventy-two thousand, two hundred eighty-nine".