44221580 has 48 divisors (see below), whose sum is σ = 100529184. Its totient is φ = 16243200.

The previous prime is 44221559. The next prime is 44221601. The reversal of 44221580 is 8512244.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (44221559) and next prime (44221601).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73280 + ... + 73880.

It is an arithmetic number, because the mean of its divisors is an integer number (2094358).

Almost surely, 2^44221580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44221580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50264592).

44221580 is an abundant number, since it is smaller than the sum of its proper divisors (56307604).

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

44221580 is a wasteful number, since it uses less digits than its factorization.

44221580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 44221580 is about 6649.9308267079. The cubic root of 44221580 is about 353.6264586270.

It can be divided in two parts, 442 and 21580, that added together give a palindrome (22022).

The spelling of 44221580 in words is "forty-four million, two hundred twenty-one thousand, five hundred eighty".