15220230 has 32 divisors (see below), whose sum is σ = 37152000. Its totient is φ = 3989472.

The previous prime is 15220193. The next prime is 15220241. The reversal of 15220230 is 3202251.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2530 + ... + 6069.

It is an arithmetic number, because the mean of its divisors is an integer number (1161000).

Almost surely, 2^15220230 is an apocalyptic number.

15220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15220230 is an abundant number, since it is smaller than the sum of its proper divisors (21931770).

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

15220230 is a wasteful number, since it uses less digits than its factorization.

15220230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8668.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 15220230 is about 3901.3113180058. The cubic root of 15220230 is about 247.8223124534.

Adding to 15220230 its reverse (3202251), we get a palindrome (18422481).

The spelling of 15220230 in words is "fifteen million, two hundred twenty thousand, two hundred thirty".