44844640 has 48 divisors (see below), whose sum is σ = 112184352. Its totient is φ = 16881664.

The previous prime is 44844637. The next prime is 44844647. The reversal of 44844640 is 4644844.

It is a super-2 number, since 2×44844640² = 4022083473459200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 44844596 and 44844605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44844647) 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, 5524 + ... + 10963.

It is an arithmetic number, because the mean of its divisors is an integer number (2337174).

Almost surely, 2^44844640 is an apocalyptic number.

44844640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44844640 is an abundant number, since it is smaller than the sum of its proper divisors (67339712).

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

44844640 is a wasteful number, since it uses less digits than its factorization.

44844640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16519 (or 16511 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 44844640 is about 6696.6140698117. The cubic root of 44844640 is about 355.2795259265.

The spelling of 44844640 in words is "forty-four million, eight hundred forty-four thousand, six hundred forty".