44243840 has 64 divisors (see below), whose sum is σ = 107332560. Its totient is φ = 17436672.

The previous prime is 44243833. The next prime is 44243887. The reversal of 44243840 is 4834244.

It is a tau number, because it is divible by the number of its divisors (64).

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, 46247 + ... + 47193.

Almost surely, 2^44243840 is an apocalyptic number.

44243840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44243840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53666280).

44243840 is an abundant number, since it is smaller than the sum of its proper divisors (63088720).

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

44243840 is an equidigital number, since it uses as much as digits as its factorization.

44243840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 44243840 is about 6651.6043177567. The cubic root of 44243840 is about 353.6857841458.

The spelling of 44243840 in words is "forty-four million, two hundred forty-three thousand, eight hundred forty".