44545140 has 120 divisors (see below), whose sum is σ = 144410112. Its totient is φ = 11482560.

The previous prime is 44545133. The next prime is 44545159. The reversal of 44545140 is 4154544.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 49777 + ... + 50663.

Almost surely, 2^44545140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44545140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72205056).

44545140 is an abundant number, since it is smaller than the sum of its proper divisors (99864972).

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

44545140 is a wasteful number, since it uses less digits than its factorization.

44545140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 44545140 is about 6674.2145605307. The cubic root of 44545140 is about 354.4868337724.

Adding to 44545140 its reverse (4154544), we get a palindrome (48699684).

The spelling of 44545140 in words is "forty-four million, five hundred forty-five thousand, one hundred forty".