44391672 has 64 divisors (see below), whose sum is σ = 132804000. Its totient is φ = 13658112.

The previous prime is 44391671. The next prime is 44391691. The reversal of 44391672 is 27619344.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44391671) 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, 5097 + ... + 10712.

Almost surely, 2^44391672 is an apocalyptic number.

It is an amenable number.

44391672 is an abundant number, since it is smaller than the sum of its proper divisors (88412328).

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

44391672 is a wasteful number, since it uses less digits than its factorization.

44391672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15837 (or 15827 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 44391672 is about 6662.7075577426. The cubic root of 44391672 is about 354.0792698091.

The spelling of 44391672 in words is "forty-four million, three hundred ninety-one thousand, six hundred seventy-two".