23320534 has 8 divisors (see below), whose sum is σ = 35794440. Its totient is φ = 11389056.

The previous prime is 23320523. The next prime is 23320537. The reversal of 23320534 is 43502332.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320537) 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, 135499 + ... + 135670.

It is an arithmetic number, because the mean of its divisors is an integer number (4474305).

Almost surely, 2^23320534 is an apocalyptic number.

23320534 is a deficient number, since it is larger than the sum of its proper divisors (12473906).

23320534 is a wasteful number, since it uses less digits than its factorization.

23320534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271214.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 23320534 is about 4829.1338767941. The cubic root of 23320534 is about 285.7017037555.

Adding to 23320534 its reverse (43502332), we get a palindrome (66822866).

The spelling of 23320534 in words is "twenty-three million, three hundred twenty thousand, five hundred thirty-four".