44221240 has 32 divisors (see below), whose sum is σ = 113712480. Its totient is φ = 15161472.

The previous prime is 44221237. The next prime is 44221319. The reversal of 44221240 is 4212244.

It is a congruent number.

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, 78687 + ... + 79246.

It is an arithmetic number, because the mean of its divisors is an integer number (3553515).

Almost surely, 2^44221240 is an apocalyptic number.

44221240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44221240 is an abundant number, since it is smaller than the sum of its proper divisors (69491240).

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

44221240 is a wasteful number, since it uses less digits than its factorization.

44221240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157951 (or 157947 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 44221240 is about 6649.9052624831. The cubic root of 44221240 is about 353.6255523327.

Adding to 44221240 its reverse (4212244), we get a palindrome (48433484).

The spelling of 44221240 in words is "forty-four million, two hundred twenty-one thousand, two hundred forty".