220220994 has 24 divisors (see below), whose sum is σ = 512351568. Its totient is φ = 62920200.

The previous prime is 220220951. The next prime is 220220999. The reversal of 220220994 is 499022022.

It is not an unprimeable number, because it can be changed into a prime (220220999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374232 + ... + 374819.

It is an arithmetic number, because the mean of its divisors is an integer number (21347982).

Almost surely, 2^220220994 is an apocalyptic number.

220220994 is an abundant number, since it is smaller than the sum of its proper divisors (292130574).

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

220220994 is a wasteful number, since it uses less digits than its factorization.

220220994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749070 (or 749063 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 220220994 is about 14839.8448105093. The cubic root of 220220994 is about 603.8831422392.

The spelling of 220220994 in words is "two hundred twenty million, two hundred twenty thousand, nine hundred ninety-four".