15044002220 has 48 divisors (see below), whose sum is σ = 34056771840. Its totient is φ = 5549127936.

The previous prime is 15044002187. The next prime is 15044002273. The reversal of 15044002220 is 2220044051.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 15044002192 and 15044002201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234821 + ... + 291939.

It is an arithmetic number, because the mean of its divisors is an integer number (709516080).

Almost surely, 2^15044002220 is an apocalyptic number.

15044002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15044002220 is an abundant number, since it is smaller than the sum of its proper divisors (19012769620).

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

15044002220 is a wasteful number, since it uses less digits than its factorization.

15044002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58154 (or 58152 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 15044002220 its reverse (2220044051), we get a palindrome (17264046271).

The spelling of 15044002220 in words is "fifteen billion, forty-four million, two thousand, two hundred twenty".