2221423446 has 32 divisors (see below), whose sum is σ = 4901212800. Its totient is φ = 665593280.

The previous prime is 2221423441. The next prime is 2221423471. The reversal of 2221423446 is 6443241222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221423441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183216 + ... + 194963.

It is an arithmetic number, because the mean of its divisors is an integer number (153162900).

Almost surely, 2^2221423446 is an apocalyptic number.

2221423446 is an abundant number, since it is smaller than the sum of its proper divisors (2679789354).

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

2221423446 is a wasteful number, since it uses less digits than its factorization.

2221423446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378284.

The product of its digits is 18432, while the sum is 30.

The square root of 2221423446 is about 47131.9790163749. The cubic root of 2221423446 is about 1304.7995064927.

Adding to 2221423446 its reverse (6443241222), we get a palindrome (8664664668).

The spelling of 2221423446 in words is "two billion, two hundred twenty-one million, four hundred twenty-three thousand, four hundred forty-six".