2243433261 has 4 divisors (see below), whose sum is σ = 2991244352. Its totient is φ = 1495622172.

The previous prime is 2243433259. The next prime is 2243433289. The reversal of 2243433261 is 1623343422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2243433261 - 2¹ = 2243433259 is a prime.

It is a super-2 number, since 2×2243433261² = 10065985593122188242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243433211) 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, 373905541 + ... + 373905546.

It is an arithmetic number, because the mean of its divisors is an integer number (747811088).

Almost surely, 2^2243433261 is an apocalyptic number.

It is an amenable number.

2243433261 is a deficient number, since it is larger than the sum of its proper divisors (747811091).

2243433261 is an equidigital number, since it uses as much as digits as its factorization.

2243433261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747811090.

The product of its digits is 20736, while the sum is 30.

The square root of 2243433261 is about 47364.8948167311. The cubic root of 2243433261 is about 1309.0946604818.

Adding to 2243433261 its reverse (1623343422), we get a palindrome (3866776683).

The spelling of 2243433261 in words is "two billion, two hundred forty-three million, four hundred thirty-three thousand, two hundred sixty-one".