220402442442 has 64 divisors (see below), whose sum is σ = 543276324864. Its totient is φ = 58048056000.

The previous prime is 220402442413. The next prime is 220402442459. The reversal of 220402442442 is 244244204022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119317 + ... + 674567.

It is an arithmetic number, because the mean of its divisors is an integer number (8488692576).

Almost surely, 2^220402442442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220402442442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271638162432).

220402442442 is an abundant number, since it is smaller than the sum of its proper divisors (322873882422).

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

220402442442 is a wasteful number, since it uses less digits than its factorization.

220402442442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556003.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 220402442442 its reverse (244244204022), we get a palindrome (464646646464).

The spelling of 220402442442 in words is "two hundred twenty billion, four hundred two million, four hundred forty-two thousand, four hundred forty-two".