2243413621 has 4 divisors (see below), whose sum is σ = 2243547072. Its totient is φ = 2243280172.

The previous prime is 2243413607. The next prime is 2243413631. The reversal of 2243413621 is 1263143422.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243413621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2243413621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243413631) 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, 37135 + ... + 76588.

It is an arithmetic number, because the mean of its divisors is an integer number (560886768).

Almost surely, 2^2243413621 is an apocalyptic number.

It is an amenable number.

2243413621 is a deficient number, since it is larger than the sum of its proper divisors (133451).

2243413621 is a wasteful number, since it uses less digits than its factorization.

2243413621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133450.

The product of its digits is 6912, while the sum is 28.

The square root of 2243413621 is about 47364.6874897323. The cubic root of 2243413621 is about 1309.0908403408.

The spelling of 2243413621 in words is "two billion, two hundred forty-three million, four hundred thirteen thousand, six hundred twenty-one".