2243742511 has 4 divisors (see below), whose sum is σ = 2247057432. Its totient is φ = 2240427592.

The previous prime is 2243742503. The next prime is 2243742517. The reversal of 2243742511 is 1152473422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2243742511 - 2³ = 2243742503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243742517) 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, 1656445 + ... + 1657798.

It is an arithmetic number, because the mean of its divisors is an integer number (561764358).

Almost surely, 2^2243742511 is an apocalyptic number.

2243742511 is a deficient number, since it is larger than the sum of its proper divisors (3314921).

2243742511 is an equidigital number, since it uses as much as digits as its factorization.

2243742511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314920.

The product of its digits is 13440, while the sum is 31.

The square root of 2243742511 is about 47368.1592528145. The cubic root of 2243742511 is about 1309.1548092027.

The spelling of 2243742511 in words is "two billion, two hundred forty-three million, seven hundred forty-two thousand, five hundred eleven".