2243933493438 has 256 divisors, whose sum is σ = 5734874880000. Its totient is φ = 569534644224.

The previous prime is 2243933493437. The next prime is 2243933493449. The reversal of 2243933493438 is 8343943393422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243933493437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1796583438 + ... + 1796584686.

It is an arithmetic number, because the mean of its divisors is an integer number (22401855000).

Almost surely, 2^{2243933493438} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2243933493438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2867437440000).

2243933493438 is an abundant number, since it is smaller than the sum of its proper divisors (3490941386562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2243933493438 is a wasteful number, since it uses less digits than its factorization.

2243933493438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211.

The product of its digits is 40310784, while the sum is 57.

The spelling of 2243933493438 in words is "two trillion, two hundred forty-three billion, nine hundred thirty-three million, four hundred ninety-three thousand, four hundred thirty-eight".