44072388 has 18 divisors (see below), whose sum is σ = 111405294. Its totient is φ = 14690784.

The previous prime is 44072387. The next prime is 44072401. The reversal of 44072388 is 88327044.

It can be written as a sum of positive squares in only one way, i.e., 43007364 + 1065024 = 6558^2 + 1032^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1224233 = 44072388 / (4 + 4 + 0 + 7 + 2 + 3 + 8 + 8).

It is not an unprimeable number, because it can be changed into a prime (44072383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612081 + ... + 612152.

It is an arithmetic number, because the mean of its divisors is an integer number (6189183).

Almost surely, 2^44072388 is an apocalyptic number.

It is an amenable number.

44072388 is an abundant number, since it is smaller than the sum of its proper divisors (67332906).

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

44072388 is a wasteful number, since it uses less digits than its factorization.

44072388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224243 (or 1224238 counting only the distinct ones).

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

The square root of 44072388 is about 6638.7037891444. The cubic root of 44072388 is about 353.2283296224.

The spelling of 44072388 in words is "forty-four million, seventy-two thousand, three hundred eighty-eight".