220940572 has 12 divisors (see below), whose sum is σ = 387235576. Its totient is φ = 110301840.

The previous prime is 220940567. The next prime is 220940581. The reversal of 220940572 is 275049022.

It is a congruent 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 in 3 ways as a sum of consecutive naturals, for example, 39138 + ... + 44425.

Almost surely, 2^220940572 is an apocalyptic number.

It is an amenable number.

220940572 is a deficient number, since it is larger than the sum of its proper divisors (166295004).

220940572 is a wasteful number, since it uses less digits than its factorization.

220940572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84228 (or 84226 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 220940572 is about 14864.0698329899. The cubic root of 220940572 is about 604.5401619321.

Adding to 220940572 its reverse (275049022), we get a palindrome (495989594).

The spelling of 220940572 in words is "two hundred twenty million, nine hundred forty thousand, five hundred seventy-two".