44218220 has 24 divisors (see below), whose sum is σ = 93214800. Its totient is φ = 17619392.

The previous prime is 44218169. The next prime is 44218249. The reversal of 44218220 is 2281244.

It is a happy number.

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, 1271 + ... + 9489.

It is an arithmetic number, because the mean of its divisors is an integer number (3883950).

Almost surely, 2^44218220 is an apocalyptic number.

It is an amenable number.

44218220 is an abundant number, since it is smaller than the sum of its proper divisors (48996580).

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

44218220 is a wasteful number, since it uses less digits than its factorization.

44218220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8497 (or 8495 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 44218220 is about 6649.6781877020. The cubic root of 44218220 is about 353.6175021025.

Adding to 44218220 its reverse (2281244), we get a palindrome (46499464).

The spelling of 44218220 in words is "forty-four million, two hundred eighteen thousand, two hundred twenty".