223540432 has 20 divisors (see below), whose sum is σ = 441283140. Its totient is φ = 109660928.

The previous prime is 223540367. The next prime is 223540459. The reversal of 223540432 is 234045322.

223540432 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 71166096 + 152374336 = 8436^2 + 12344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 223540397 and 223540406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130957 + ... + 132652.

It is an arithmetic number, because the mean of its divisors is an integer number (22064157).

Almost surely, 2^223540432 is an apocalyptic number.

It is an amenable number.

223540432 is a deficient number, since it is larger than the sum of its proper divisors (217742708).

223540432 is a wasteful number, since it uses less digits than its factorization.

223540432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263670 (or 263664 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 223540432 is about 14951.2685749404. The cubic root of 223540432 is about 606.9021769409.

Adding to 223540432 its reverse (234045322), we get a palindrome (457585754).

The spelling of 223540432 in words is "two hundred twenty-three million, five hundred forty thousand, four hundred thirty-two".