44485728 has 120 divisors (see below), whose sum is σ = 136935288. Its totient is φ = 12644352.

The previous prime is 44485717. The next prime is 44485757. The reversal of 44485728 is 82758444.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 44485728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 230400 + ... + 230592.

Almost surely, 2^44485728 is an apocalyptic number.

44485728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44485728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68467644).

44485728 is an abundant number, since it is smaller than the sum of its proper divisors (92449560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44485728 is an equidigital number, since it uses as much as digits as its factorization.

44485728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 205 counting only the distinct ones).

The product of its digits is 286720, while the sum is 42.

The square root of 44485728 is about 6669.7622146520. The cubic root of 44485728 is about 354.3291649300.

The spelling of 44485728 in words is "forty-four million, four hundred eighty-five thousand, seven hundred twenty-eight".