220889976 has 64 divisors (see below), whose sum is σ = 610156800. Its totient is φ = 66283008.

The previous prime is 220889951. The next prime is 220890023. The reversal of 220889976 is 679988022.

It is a happy number.

It is a super-3 number, since 3×220889976³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

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 15 ways as a sum of consecutive naturals, for example, 2386 + ... + 21153.

It is an arithmetic number, because the mean of its divisors is an integer number (9533700).

Almost surely, 2^220889976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220889976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305078400).

220889976 is an abundant number, since it is smaller than the sum of its proper divisors (389266824).

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

220889976 is a wasteful number, since it uses less digits than its factorization.

220889976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23588 (or 23584 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 220889976 is about 14862.3677790586. The cubic root of 220889976 is about 604.4940112879.

The spelling of 220889976 in words is "two hundred twenty million, eight hundred eighty-nine thousand, nine hundred seventy-six".