44672540 has 24 divisors (see below), whose sum is σ = 102341232. Its totient is φ = 16244480.

The previous prime is 44672533. The next prime is 44672543. The reversal of 44672540 is 4527644.

It is a junction number, because it is equal to n+sod(n) for n = 44672497 and 44672506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44672543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101309 + ... + 101748.

It is an arithmetic number, because the mean of its divisors is an integer number (4264218).

Almost surely, 2^44672540 is an apocalyptic number.

It is an amenable number.

44672540 is an abundant number, since it is smaller than the sum of its proper divisors (57668692).

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

44672540 is a wasteful number, since it uses less digits than its factorization.

44672540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203077 (or 203075 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 44672540 is about 6683.7519403401. The cubic root of 44672540 is about 354.8244586065.

Subtracting from 44672540 its reverse (4527644), we obtain a square (40144896 = 6336²).

It can be divided in two parts, 4467 and 2540, that added together give a palindrome (7007).

The spelling of 44672540 in words is "forty-four million, six hundred seventy-two thousand, five hundred forty".