44201220 has 192 divisors, whose sum is σ = 154828800. Its totient is φ = 9192960.

The previous prime is 44201219. The next prime is 44201231. The reversal of 44201220 is 2210244.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 44201220.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 231325 + ... + 231515.

It is an arithmetic number, because the mean of its divisors is an integer number (806400).

Almost surely, 2^44201220 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 44201220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77414400).

44201220 is an abundant number, since it is smaller than the sum of its proper divisors (110627580).

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

44201220 is a wasteful number, since it uses less digits than its factorization.

44201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 44201220 is about 6648.3998074725. The cubic root of 44201220 is about 353.5721793970.

Adding to 44201220 its reverse (2210244), we get a palindrome (46411464).

The spelling of 44201220 in words is "forty-four million, two hundred one thousand, two hundred twenty".