44220840 has 32 divisors (see below), whose sum is σ = 132662880. Its totient is φ = 11792192.

The previous prime is 44220817. The next prime is 44220857. The reversal of 44220840 is 4802244.

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 44220840.

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, 184134 + ... + 184373.

It is an arithmetic number, because the mean of its divisors is an integer number (4145715).

Almost surely, 2^44220840 is an apocalyptic number.

44220840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44220840 is an abundant number, since it is smaller than the sum of its proper divisors (88442040).

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

44220840 is a wasteful number, since it uses less digits than its factorization.

44220840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368521 (or 368517 counting only the distinct ones).

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

The square root of 44220840 is about 6649.8751867986. The cubic root of 44220840 is about 353.6244860981.

The spelling of 44220840 in words is "forty-four million, two hundred twenty thousand, eight hundred forty".