220142910 has 64 divisors (see below), whose sum is σ = 572640768. Its totient is φ = 53841024.

The previous prime is 220142887. The next prime is 220142921. The reversal of 220142910 is 19241022.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 61839 + ... + 65301.

It is an arithmetic number, because the mean of its divisors is an integer number (8947512).

Almost surely, 2^220142910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220142910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286320384).

220142910 is an abundant number, since it is smaller than the sum of its proper divisors (352497858).

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

220142910 is a wasteful number, since it uses less digits than its factorization.

220142910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 220142910 is about 14837.2136872123. The cubic root of 220142910 is about 603.8117606320.

Adding to 220142910 its reverse (19241022), we get a palindrome (239383932).

The spelling of 220142910 in words is "two hundred twenty million, one hundred forty-two thousand, nine hundred ten".