220940976 has 40 divisors (see below), whose sum is σ = 604340784. Its totient is φ = 69314560.

The previous prime is 220940971. The next prime is 220940977. The reversal of 220940976 is 679049022.

It is not an unprimeable number, because it can be changed into a prime (220940971) 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, 134565 + ... + 136196.

Almost surely, 2^220940976 is an apocalyptic number.

It is an amenable number.

220940976 is an abundant number, since it is smaller than the sum of its proper divisors (383399808).

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

220940976 is a wasteful number, since it uses less digits than its factorization.

220940976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270789 (or 270783 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 220940976 is about 14864.0834228014. The cubic root of 220940976 is about 604.5405304084.

Adding to 220940976 its reverse (679049022), we get a palindrome (899989998).

The spelling of 220940976 in words is "two hundred twenty million, nine hundred forty thousand, nine hundred seventy-six".