220440242 has 32 divisors (see below), whose sum is σ = 381775680. Its totient is φ = 94409280.

The previous prime is 220440229. The next prime is 220440263. The reversal of 220440242 is 242044022.

220440242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81008 + ... + 83684.

It is an arithmetic number, because the mean of its divisors is an integer number (11930490).

Almost surely, 2^220440242 is an apocalyptic number.

220440242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220440242 is a deficient number, since it is larger than the sum of its proper divisors (161335438).

220440242 is a wasteful number, since it uses less digits than its factorization.

220440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 220440242 is about 14847.2301120445. The cubic root of 220440242 is about 604.0834807789.

Adding to 220440242 its reverse (242044022), we get a palindrome (462484264).

The spelling of 220440242 in words is "two hundred twenty million, four hundred forty thousand, two hundred forty-two".