15104220 has 24 divisors (see below), whose sum is σ = 42291984. Its totient is φ = 4027776.

The previous prime is 15104213. The next prime is 15104233. The reversal of 15104220 is 2240151.

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 15104220.

It is a congruent 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, 125809 + ... + 125928.

It is an arithmetic number, because the mean of its divisors is an integer number (1762166).

Almost surely, 2^15104220 is an apocalyptic number.

15104220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15104220 is an abundant number, since it is smaller than the sum of its proper divisors (27187764).

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

15104220 is a wasteful number, since it uses less digits than its factorization.

15104220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251749 (or 251747 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 15104220 is about 3886.4148003012. The cubic root of 15104220 is about 247.1910643915.

Adding to 15104220 its reverse (2240151), we get a palindrome (17344371).

The spelling of 15104220 in words is "fifteen million, one hundred four thousand, two hundred twenty".