223530363938 has 54 divisors (see below), whose sum is σ = 393789200049. Its totient is φ = 94886052912.

The previous prime is 223530363937. The next prime is 223530363941. The reversal of 223530363938 is 839363035322.

It can be written as a sum of positive squares in 2 ways, for example, as 162226089529 + 61304274409 = 402773^2 + 247597^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=334313.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 223530363892 and 223530363901.

It is not an unprimeable number, because it can be changed into a prime (223530363937) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 762902120 + ... + 762902412.

Almost surely, 2^223530363938 is an apocalyptic number.

223530363938 is a deficient number, since it is larger than the sum of its proper divisors (170258836111).

223530363938 is an frugal number, since it uses more digits than its factorization.

223530363938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 47.

The spelling of 223530363938 in words is "two hundred twenty-three billion, five hundred thirty million, three hundred sixty-three thousand, nine hundred thirty-eight".