238223533 has 16 divisors (see below), whose sum is σ = 258984000. Its totient is φ = 218287872.

The previous prime is 238223521. The next prime is 238223543. The reversal of 238223533 is 335322832.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238223533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238223495 and 238223504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238223543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108238 + ... + 110416.

It is an arithmetic number, because the mean of its divisors is an integer number (16186500).

Almost surely, 2^238223533 is an apocalyptic number.

It is an amenable number.

238223533 is a deficient number, since it is larger than the sum of its proper divisors (20760467).

238223533 is a wasteful number, since it uses less digits than its factorization.

238223533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364.

The product of its digits is 25920, while the sum is 31.

The square root of 238223533 is about 15434.4916663945. The cubic root of 238223533 is about 619.9093979644.

The spelling of 238223533 in words is "two hundred thirty-eight million, two hundred twenty-three thousand, five hundred thirty-three".