2213431242 has 64 divisors (see below), whose sum is σ = 4981730688. Its totient is φ = 649728000.

The previous prime is 2213431237. The next prime is 2213431249. The reversal of 2213431242 is 2421343122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2213431249) by changing a digit.

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, 586642 + ... + 590402.

It is an arithmetic number, because the mean of its divisors is an integer number (77839542).

Almost surely, 2^2213431242 is an apocalyptic number.

2213431242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2213431242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2490865344).

2213431242 is an abundant number, since it is smaller than the sum of its proper divisors (2768299446).

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

2213431242 is a wasteful number, since it uses less digits than its factorization.

2213431242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055.

The product of its digits is 2304, while the sum is 24.

The square root of 2213431242 is about 47047.1172549392. The cubic root of 2213431242 is about 1303.2328300928.

Adding to 2213431242 its reverse (2421343122), we get a palindrome (4634774364).

The spelling of 2213431242 in words is "two billion, two hundred thirteen million, four hundred thirty-one thousand, two hundred forty-two".