220980924 has 36 divisors (see below), whose sum is σ = 559477464. Its totient is φ = 73543392.

The previous prime is 220980923. The next prime is 220980961. The reversal of 220980924 is 429089022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220980923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19839 + ... + 28905.

Almost surely, 2^220980924 is an apocalyptic number.

It is an amenable number.

220980924 is an abundant number, since it is smaller than the sum of its proper divisors (338496540).

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

220980924 is a wasteful number, since it uses less digits than its factorization.

220980924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9754 (or 9749 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 220980924 is about 14865.4271381619. The cubic root of 220980924 is about 604.5769635623.

The spelling of 220980924 in words is "two hundred twenty million, nine hundred eighty thousand, nine hundred twenty-four".