220742572 has 12 divisors (see below), whose sum is σ = 386469216. Its totient is φ = 110322800.

The previous prime is 220742563. The next prime is 220742573. The reversal of 220742572 is 275247022.

It is not an unprimeable number, because it can be changed into a prime (220742573) 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, 679 + ... + 21022.

It is an arithmetic number, because the mean of its divisors is an integer number (32205768).

Almost surely, 2^220742572 is an apocalyptic number.

It is an amenable number.

220742572 is a deficient number, since it is larger than the sum of its proper divisors (165726644).

220742572 is a wasteful number, since it uses less digits than its factorization.

220742572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24248 (or 24246 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 220742572 is about 14857.4079838981. The cubic root of 220742572 is about 604.3595179915.

Adding to 220742572 its reverse (275247022), we get a palindrome (495989594).

The spelling of 220742572 in words is "two hundred twenty million, seven hundred forty-two thousand, five hundred seventy-two".