23212442 has 16 divisors (see below), whose sum is σ = 38060064. Its totient is φ = 10530000.

The previous prime is 23212439. The next prime is 23212447. The reversal of 23212442 is 24421232.

It is not an unprimeable number, because it can be changed into a prime (23212447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17192 + ... + 18492.

It is an arithmetic number, because the mean of its divisors is an integer number (2378754).

Almost surely, 2^23212442 is an apocalyptic number.

23212442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23212442 is a deficient number, since it is larger than the sum of its proper divisors (14847622).

23212442 is a wasteful number, since it uses less digits than its factorization.

23212442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125.

The product of its digits is 768, while the sum is 20.

The square root of 23212442 is about 4817.9292232244. The cubic root of 23212442 is about 285.2596054572.

Adding to 23212442 its reverse (24421232), we get a palindrome (47633674).

The spelling of 23212442 in words is "twenty-three million, two hundred twelve thousand, four hundred forty-two".