44540144 has 40 divisors (see below), whose sum is σ = 98243712. Its totient is φ = 19363520.

The previous prime is 44540117. The next prime is 44540173. The reversal of 44540144 is 44104544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454 + ... + 9549.

Almost surely, 2^44540144 is an apocalyptic number.

44540144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44540144 is an abundant number, since it is smaller than the sum of its proper divisors (53703568).

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

44540144 is a wasteful number, since it uses less digits than its factorization.

44540144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11045 (or 11039 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 44540144 is about 6673.8402737854. The cubic root of 44540144 is about 354.4735806810.

Adding to 44540144 its reverse (44104544), we get a palindrome (88644688).

Subtracting from 44540144 its reverse (44104544), we obtain a square (435600 = 660²).

The spelling of 44540144 in words is "forty-four million, five hundred forty thousand, one hundred forty-four".