544442220 has 72 divisors (see below), whose sum is σ = 1887404064. Its totient is φ = 124443648.

The previous prime is 544442209. The next prime is 544442231. The reversal of 544442220 is 22244445.

It is an interprime number because it is at equal distance from previous prime (544442209) and next prime (544442231).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214789 + ... + 217308.

Almost surely, 2^544442220 is an apocalyptic number.

It is an amenable number.

544442220 is an abundant number, since it is smaller than the sum of its proper divisors (1342961844).

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

544442220 is a wasteful number, since it uses less digits than its factorization.

544442220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432119 (or 432114 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 544442220 is about 23333.2856666180. The cubic root of 544442220 is about 816.5521601684.

Adding to 544442220 its reverse (22244445), we get a palindrome (566686665).

The spelling of 544442220 in words is "five hundred forty-four million, four hundred forty-two thousand, two hundred twenty".