2213400242 has 8 divisors (see below), whose sum is σ = 3320344236. Its totient is φ = 1106618832.

The previous prime is 2213400227. The next prime is 2213400247. The reversal of 2213400242 is 2420043122.

It can be written as a sum of positive squares in 2 ways, for example, as 2174450161 + 38950081 = 46631^2 + 6241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2213400247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2588 + ... + 66584.

Almost surely, 2^2213400242 is an apocalyptic number.

2213400242 is a deficient number, since it is larger than the sum of its proper divisors (1106943994).

2213400242 is a wasteful number, since it uses less digits than its factorization.

2213400242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81292.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2213400242 is about 47046.7877968305. The cubic root of 2213400242 is about 1303.2267459634.

Adding to 2213400242 its reverse (2420043122), we get a palindrome (4633443364).

The spelling of 2213400242 in words is "two billion, two hundred thirteen million, four hundred thousand, two hundred forty-two".