44040840 has 32 divisors (see below), whose sum is σ = 132122880. Its totient is φ = 11744192.

The previous prime is 44040823. The next prime is 44040851. The reversal of 44040840 is 4804044.

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 44040840.

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, 183384 + ... + 183623.

It is an arithmetic number, because the mean of its divisors is an integer number (4128840).

Almost surely, 2^44040840 is an apocalyptic number.

44040840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44040840 is an abundant number, since it is smaller than the sum of its proper divisors (88082040).

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

44040840 is a wasteful number, since it uses less digits than its factorization.

44040840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367021 (or 367017 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 44040840 is about 6636.3272975344. The cubic root of 44040840 is about 353.1440265938.

Adding to 44040840 its reverse (4804044), we get a palindrome (48844884).

The spelling of 44040840 in words is "forty-four million, forty thousand, eight hundred forty".