2243273472 has 108 divisors (see below), whose sum is σ = 7055982024. Its totient is φ = 679772160.

The previous prime is 2243273449. The next prime is 2243273479. The reversal of 2243273472 is 2743723422.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2243273479) 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, 18913 + ... + 69600.

Almost surely, 2^2243273472 is an apocalyptic number.

2243273472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2243273472 is an abundant number, since it is smaller than the sum of its proper divisors (4812708552).

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

2243273472 is a wasteful number, since it uses less digits than its factorization.

2243273472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88546 (or 88529 counting only the distinct ones).

The product of its digits is 112896, while the sum is 36.

The square root of 2243273472 is about 47363.2079994588. The cubic root of 2243273472 is about 1309.0635795641.

Adding to 2243273472 its reverse (2743723422), we get a palindrome (4986996894).

The spelling of 2243273472 in words is "two billion, two hundred forty-three million, two hundred seventy-three thousand, four hundred seventy-two".