44221156 has 24 divisors (see below), whose sum is σ = 88615296. Its totient is φ = 18914880.

The previous prime is 44221147. The next prime is 44221171. The reversal of 44221156 is 65112244.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 44221156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16896 + ... + 19336.

It is an arithmetic number, because the mean of its divisors is an integer number (3692304).

Almost surely, 2^44221156 is an apocalyptic number.

It is an amenable number.

44221156 is an abundant number, since it is smaller than the sum of its proper divisors (44394140).

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

44221156 is a wasteful number, since it uses less digits than its factorization.

44221156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099 (or 3097 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 44221156 is about 6649.8989466006. The cubic root of 44221156 is about 353.6253284239.

The spelling of 44221156 in words is "forty-four million, two hundred twenty-one thousand, one hundred fifty-six".