223000040 has 16 divisors (see below), whose sum is σ = 501750180. Its totient is φ = 89200000.

The previous prime is 223000039. The next prime is 223000049. The reversal of 223000040 is 40000322.

It can be written as a sum of positive squares in 2 ways, for example, as 206726884 + 16273156 = 14378^2 + 4034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222999985 and 223000030.

It is not an unprimeable number, because it can be changed into a prime (223000049) 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, 2787461 + ... + 2787540.

Almost surely, 2^223000040 is an apocalyptic number.

223000040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223000040 is an abundant number, since it is smaller than the sum of its proper divisors (278750140).

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

223000040 is a wasteful number, since it uses less digits than its factorization.

223000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575012 (or 5575008 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 223000040 is about 14933.1858623671. The cubic root of 223000040 is about 606.4127357086.

Adding to 223000040 its reverse (40000322), we get a palindrome (263000362).

The spelling of 223000040 in words is "two hundred twenty-three million, forty", and thus it is an aban number.