44728686 has 40 divisors (see below), whose sum is σ = 102572184. Its totient is φ = 14560560.

The previous prime is 44728681. The next prime is 44728693. The reversal of 44728686 is 68682744.

44728686 is a modest number, since divided by 8686 gives 4472 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44728681) 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, 3756 + ... + 10176.

Almost surely, 2^44728686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44728686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51286092).

44728686 is an abundant number, since it is smaller than the sum of its proper divisors (57843498).

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

44728686 is a wasteful number, since it uses less digits than its factorization.

44728686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6478 (or 6469 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 44728686 is about 6687.9508072354. The cubic root of 44728686 is about 354.9730482746.

The spelling of 44728686 in words is "forty-four million, seven hundred twenty-eight thousand, six hundred eighty-six".