23521242 has 16 divisors (see below), whose sum is σ = 47092032. Its totient is φ = 7832160.

The previous prime is 23521213. The next prime is 23521243. The reversal of 23521242 is 24212532.

It is not an unprimeable number, because it can be changed into a prime (23521243) 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, 7563 + ... + 10209.

It is an arithmetic number, because the mean of its divisors is an integer number (2943252).

Almost surely, 2^23521242 is an apocalyptic number.

23521242 is an abundant number, since it is smaller than the sum of its proper divisors (23570790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23521242 is a wasteful number, since it uses less digits than its factorization.

23521242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133.

The product of its digits is 960, while the sum is 21.

The square root of 23521242 is about 4849.8703075443. The cubic root of 23521242 is about 286.5189934077.

Adding to 23521242 its reverse (24212532), we get a palindrome (47733774).

The spelling of 23521242 in words is "twenty-three million, five hundred twenty-one thousand, two hundred forty-two".