2223635472 has 120 divisors (see below), whose sum is σ = 6436474200. Its totient is φ = 716083200.

The previous prime is 2223635467. The next prime is 2223635473. The reversal of 2223635472 is 2745363222.

2223635472 is a `hidden beast` number, since 2 + 2 + 236 + 354 + 72 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 349091856 + 1874543616 = 18684^2 + 43296^2 .

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 (2223635473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 792472 + ... + 795272.

It is an arithmetic number, because the mean of its divisors is an integer number (53637285).

Almost surely, 2^2223635472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2223635472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3218237100).

2223635472 is an abundant number, since it is smaller than the sum of its proper divisors (4212838728).

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

2223635472 is a wasteful number, since it uses less digits than its factorization.

2223635472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2992 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 2223635472 is about 47155.4394741476. The cubic root of 2223635472 is about 1305.2324560585.

Adding to 2223635472 its reverse (2745363222), we get a palindrome (4968998694).

The spelling of 2223635472 in words is "two billion, two hundred twenty-three million, six hundred thirty-five thousand, four hundred seventy-two".