220474922 has 8 divisors (see below), whose sum is σ = 333126756. Its totient is φ = 109432672.

The previous prime is 220474913. The next prime is 220474927. The reversal of 220474922 is 229474022.

Added to its reverse (229474022) it gives a square (449948944 = 21212²).

It can be written as a sum of positive squares in 2 ways, for example, as 205951201 + 14523721 = 14351^2 + 3811^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (220474927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402053 + ... + 402600.

Almost surely, 2^220474922 is an apocalyptic number.

220474922 is a deficient number, since it is larger than the sum of its proper divisors (112651834).

220474922 is a wasteful number, since it uses less digits than its factorization.

220474922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804792.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 220474922 is about 14848.3979607229. The cubic root of 220474922 is about 604.1151575672.

Adding to 220474922 its reverse (229474022), we get a square (449948944 = 21212²).

The spelling of 220474922 in words is "two hundred twenty million, four hundred seventy-four thousand, nine hundred twenty-two".