44520140 has 24 divisors (see below), whose sum is σ = 106848672. Its totient is φ = 15264000.

The previous prime is 44520131. The next prime is 44520143. The reversal of 44520140 is 4102544.

44520140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (44520143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158861 + ... + 159140.

It is an arithmetic number, because the mean of its divisors is an integer number (4452028).

Almost surely, 2^44520140 is an apocalyptic number.

It is an amenable number.

44520140 is an abundant number, since it is smaller than the sum of its proper divisors (62328532).

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

44520140 is a wasteful number, since it uses less digits than its factorization.

44520140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318017 (or 318015 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 44520140 is about 6672.3414181230. The cubic root of 44520140 is about 354.4205053299.

Adding to 44520140 its reverse (4102544), we get a palindrome (48622684).

The spelling of 44520140 in words is "forty-four million, five hundred twenty thousand, one hundred forty".