23243242 has 32 divisors (see below), whose sum is σ = 39688704. Its totient is φ = 10113600.

The previous prime is 23243221. The next prime is 23243243. The reversal of 23243242 is 24234232.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (23243243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117888 + ... + 118084.

It is an arithmetic number, because the mean of its divisors is an integer number (1240272).

Almost surely, 2^23243242 is an apocalyptic number.

23243242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23243242 is a deficient number, since it is larger than the sum of its proper divisors (16445462).

23243242 is a wasteful number, since it uses less digits than its factorization.

23243242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414.

The product of its digits is 2304, while the sum is 22.

The square root of 23243242 is about 4821.1245576110. The cubic root of 23243242 is about 285.3857176049.

Adding to 23243242 its reverse (24234232), we get a palindrome (47477474).

The spelling of 23243242 in words is "twenty-three million, two hundred forty-three thousand, two hundred forty-two".