44038728 has 40 divisors (see below), whose sum is σ = 123351030. Its totient is φ = 14679360.

The previous prime is 44038717. The next prime is 44038741. The reversal of 44038728 is 82783044.

It can be written as a sum of positive squares in only one way, i.e., 25220484 + 18818244 = 5022^2 + 4338^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 44038692 and 44038701.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33333 + ... + 34628.

Almost surely, 2^44038728 is an apocalyptic number.

It is an amenable number.

44038728 is an abundant number, since it is smaller than the sum of its proper divisors (79312302).

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

44038728 is a wasteful number, since it uses less digits than its factorization.

44038728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67979 (or 67966 counting only the distinct ones).

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

The square root of 44038728 is about 6636.1681714676. The cubic root of 44038728 is about 353.1383814388.

It can be divided in two parts, 4403 and 8728, that added together give a palindrome (13131).

The spelling of 44038728 in words is "forty-four million, thirty-eight thousand, seven hundred twenty-eight".