44681472 has 216 divisors, whose sum is σ = 147315168. Its totient is φ = 12902400.

The previous prime is 44681449. The next prime is 44681477. The reversal of 44681472 is 27418644.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (44681477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1039083 + ... + 1039125.

Almost surely, 2^44681472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44681472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73657584).

44681472 is an abundant number, since it is smaller than the sum of its proper divisors (102633696).

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

44681472 is a wasteful number, since it uses less digits than its factorization.

44681472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 100 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 44681472 is about 6684.4200945183. The cubic root of 44681472 is about 354.8481053543.

It can be divided in two parts, 446 and 81472, that added together give a palindrome (81918).

The spelling of 44681472 in words is "forty-four million, six hundred eighty-one thousand, four hundred seventy-two".