44772728 has 64 divisors (see below), whose sum is σ = 112734720. Its totient is φ = 16099200.

The previous prime is 44772727. The next prime is 44772737. The reversal of 44772728 is 82727744.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44772727) 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, 5213 + ... + 10803.

It is an arithmetic number, because the mean of its divisors is an integer number (1761480).

Almost surely, 2^44772728 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 44772728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56367360).

44772728 is an abundant number, since it is smaller than the sum of its proper divisors (67961992).

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

44772728 is a wasteful number, since it uses less digits than its factorization.

44772728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628 (or 5624 counting only the distinct ones).

The product of its digits is 175616, while the sum is 41.

The square root of 44772728 is about 6691.2426349670. The cubic root of 44772728 is about 355.0895178601.

The spelling of 44772728 in words is "forty-four million, seven hundred seventy-two thousand, seven hundred twenty-eight".