44361220 has 24 divisors (see below), whose sum is σ = 94085208. Its totient is φ = 17568000.

The previous prime is 44361209. The next prime is 44361223. The reversal of 44361220 is 2216344.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21455424 + 22905796 = 4632^2 + 4786^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44361191 and 44361200.

It is not an unprimeable number, because it can be changed into a prime (44361223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8961 + ... + 13000.

It is an arithmetic number, because the mean of its divisors is an integer number (3920217).

Almost surely, 2^44361220 is an apocalyptic number.

It is an amenable number.

44361220 is an abundant number, since it is smaller than the sum of its proper divisors (49723988).

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

44361220 is a wasteful number, since it uses less digits than its factorization.

44361220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22071 (or 22069 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 44361220 is about 6660.4219085580. The cubic root of 44361220 is about 353.9982869888.

Adding to 44361220 its reverse (2216344), we get a palindrome (46577564).

The spelling of 44361220 in words is "forty-four million, three hundred sixty-one thousand, two hundred twenty".