23533442 has 8 divisors (see below), whose sum is σ = 36517500. Its totient is φ = 11360944.

The previous prime is 23533441. The next prime is 23533453. The reversal of 23533442 is 24433532.

It can be written as a sum of positive squares in 2 ways, for example, as 21631801 + 1901641 = 4651^2 + 1379^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23533441) 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, 202817 + ... + 202932.

Almost surely, 2^23533442 is an apocalyptic number.

23533442 is a deficient number, since it is larger than the sum of its proper divisors (12984058).

23533442 is a wasteful number, since it uses less digits than its factorization.

23533442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405780.

The product of its digits is 8640, while the sum is 26.

The square root of 23533442 is about 4851.1279100844. The cubic root of 23533442 is about 286.5685220783.

Adding to 23533442 its reverse (24433532), we get a palindrome (47966974).

The spelling of 23533442 in words is "twenty-three million, five hundred thirty-three thousand, four hundred forty-two".