220142604 has 24 divisors (see below), whose sum is σ = 560363328. Its totient is φ = 66709840.

The previous prime is 220142579. The next prime is 220142609. The reversal of 220142604 is 406241022.

It is not an unprimeable number, because it can be changed into a prime (220142609) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 833742 + ... + 834005.

It is an arithmetic number, because the mean of its divisors is an integer number (23348472).

Almost surely, 2^220142604 is an apocalyptic number.

It is an amenable number.

220142604 is an abundant number, since it is smaller than the sum of its proper divisors (340220724).

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

220142604 is a wasteful number, since it uses less digits than its factorization.

220142604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667765 (or 1667763 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 220142604 is about 14837.2033752995. The cubic root of 220142604 is about 603.8114808645.

Adding to 220142604 its reverse (406241022), we get a palindrome (626383626).

The spelling of 220142604 in words is "two hundred twenty million, one hundred forty-two thousand, six hundred four".