220854612 has 48 divisors (see below), whose sum is σ = 569318400. Its totient is φ = 66075360.

The previous prime is 220854611. The next prime is 220854619. The reversal of 220854612 is 216458022.

It is a self number, because there is not a number n which added to its sum of digits gives 220854612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220854611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162 + ... + 21017.

It is an arithmetic number, because the mean of its divisors is an integer number (11860800).

Almost surely, 2^220854612 is an apocalyptic number.

220854612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220854612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284659200).

220854612 is an abundant number, since it is smaller than the sum of its proper divisors (348463788).

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

220854612 is a wasteful number, since it uses less digits than its factorization.

220854612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21276 (or 21274 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 220854612 is about 14861.1780152180. The cubic root of 220854612 is about 604.4617501783.

The spelling of 220854612 in words is "two hundred twenty million, eight hundred fifty-four thousand, six hundred twelve".