220736922 has 64 divisors (see below), whose sum is σ = 526417920. Its totient is φ = 60371136.

The previous prime is 220736917. The next prime is 220736947. The reversal of 220736922 is 229637022.

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 31 ways as a sum of consecutive naturals, for example, 153973 + ... + 155399.

It is an arithmetic number, because the mean of its divisors is an integer number (8225280).

Almost surely, 2^220736922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220736922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263208960).

220736922 is an abundant number, since it is smaller than the sum of its proper divisors (305680998).

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

220736922 is a wasteful number, since it uses less digits than its factorization.

220736922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 220736922 is about 14857.2178418437. The cubic root of 220736922 is about 604.3543616679.

The spelling of 220736922 in words is "two hundred twenty million, seven hundred thirty-six thousand, nine hundred twenty-two".