2243504421 has 12 divisors (see below), whose sum is σ = 3293743180. Its totient is φ = 1471150080.

The previous prime is 2243504413. The next prime is 2243504449. The reversal of 2243504421 is 1244053422.

It can be written as a sum of positive squares in 2 ways, for example, as 35820225 + 2207684196 = 5985^2 + 46986^2 .

It is not a de Polignac number, because 2243504421 - 2³ = 2243504413 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 (2243504321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2042716 + ... + 2043813.

Almost surely, 2^2243504421 is an apocalyptic number.

It is an amenable number.

2243504421 is a deficient number, since it is larger than the sum of its proper divisors (1050238759).

2243504421 is a wasteful number, since it uses less digits than its factorization.

2243504421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086596 (or 4086593 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2243504421 is about 47365.6460000283. The cubic root of 2243504421 is about 1309.1085014984.

Adding to 2243504421 its reverse (1244053422), we get a palindrome (3487557843).

The spelling of 2243504421 in words is "two billion, two hundred forty-three million, five hundred four thousand, four hundred twenty-one".