220503874 has 4 divisors (see below), whose sum is σ = 330755814. Its totient is φ = 110251936.

The previous prime is 220503869. The next prime is 220503883. The reversal of 220503874 is 478305022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 220314649 + 189225 = 14843^2 + 435^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 55125967 + ... + 55125970.

Almost surely, 2^220503874 is an apocalyptic number.

220503874 is a deficient number, since it is larger than the sum of its proper divisors (110251940).

220503874 is a wasteful number, since it uses less digits than its factorization.

220503874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110251939.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 220503874 is about 14849.3728487098. The cubic root of 220503874 is about 604.1415998436.

Adding to 220503874 its reverse (478305022), we get a palindrome (698808896).

The spelling of 220503874 in words is "two hundred twenty million, five hundred three thousand, eight hundred seventy-four".