233460021 has 4 divisors (see below), whose sum is σ = 311280032. Its totient is φ = 155640012.

The previous prime is 233460013. The next prime is 233460023. The reversal of 233460021 is 120064332.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 233460021 - 2³ = 233460013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 233460021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233460023) 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, 38910001 + ... + 38910006.

It is an arithmetic number, because the mean of its divisors is an integer number (77820008).

Almost surely, 2^233460021 is an apocalyptic number.

It is an amenable number.

233460021 is a deficient number, since it is larger than the sum of its proper divisors (77820011).

233460021 is an equidigital number, since it uses as much as digits as its factorization.

233460021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77820010.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 233460021 is about 15279.3985810961. The cubic root of 233460021 is about 615.7496496667.

The spelling of 233460021 in words is "two hundred thirty-three million, four hundred sixty thousand, twenty-one".