15030220 has 24 divisors (see below), whose sum is σ = 32299344. Its totient is φ = 5871936.

The previous prime is 15030199. The next prime is 15030233. The reversal of 15030220 is 2203051.

It is a self number, because there is not a number n which added to its sum of digits gives 15030220.

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, 7879 + ... + 9598.

It is an arithmetic number, because the mean of its divisors is an integer number (1345806).

Almost surely, 2^15030220 is an apocalyptic number.

15030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15030220 is an abundant number, since it is smaller than the sum of its proper divisors (17269124).

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

15030220 is a wasteful number, since it uses less digits than its factorization.

15030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17529 (or 17527 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 15030220 is about 3876.8827684107. The cubic root of 15030220 is about 246.7867161764.

Adding to 15030220 its reverse (2203051), we get a palindrome (17233271).

The spelling of 15030220 in words is "fifteen million, thirty thousand, two hundred twenty".