220061940 has 288 divisors, whose sum is σ = 783955200. Its totient is φ = 46061568.

The previous prime is 220061851. The next prime is 220061981. The reversal of 220061940 is 49160022.

It is a self number, because there is not a number n which added to its sum of digits gives 220061940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5947602 + ... + 5947638.

Almost surely, 2^220061940 is an apocalyptic number.

220061940 is a gapful number since it is divisible by the number (20) 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 220061940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391977600).

220061940 is an abundant number, since it is smaller than the sum of its proper divisors (563893260).

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

220061940 is a wasteful number, since it uses less digits than its factorization.

220061940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 220061940 is about 14834.4848242195. The cubic root of 220061940 is about 603.7377229178.

The spelling of 220061940 in words is "two hundred twenty million, sixty-one thousand, nine hundred forty".