44105640 has 32 divisors (see below), whose sum is σ = 132317280. Its totient is φ = 11761472.

The previous prime is 44105597. The next prime is 44105647. The reversal of 44105640 is 4650144.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 44105640.

It is not an unprimeable number, because it can be changed into a prime (44105647) 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, 183654 + ... + 183893.

It is an arithmetic number, because the mean of its divisors is an integer number (4134915).

Almost surely, 2^44105640 is an apocalyptic number.

44105640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44105640 is an abundant number, since it is smaller than the sum of its proper divisors (88211640).

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

44105640 is a wasteful number, since it uses less digits than its factorization.

44105640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367561 (or 367557 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 44105640 is about 6641.2077214916. The cubic root of 44105640 is about 353.3171425673.

Adding to 44105640 its reverse (4650144), we get a palindrome (48755784).

The spelling of 44105640 in words is "forty-four million, one hundred five thousand, six hundred forty".