233604221 has 8 divisors (see below), whose sum is σ = 246310080. Its totient is φ = 220939488.

The previous prime is 233604179. The next prime is 233604223. The reversal of 233604221 is 122406332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233604221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233604223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760 + ... + 21686.

It is an arithmetic number, because the mean of its divisors is an integer number (30788760).

Almost surely, 2^233604221 is an apocalyptic number.

It is an amenable number.

233604221 is a deficient number, since it is larger than the sum of its proper divisors (12705859).

233604221 is a wasteful number, since it uses less digits than its factorization.

233604221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20563.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 233604221 is about 15284.1166247840. The cubic root of 233604221 is about 615.8763991694.

The spelling of 233604221 in words is "two hundred thirty-three million, six hundred four thousand, two hundred twenty-one".