23158442 has 16 divisors (see below), whose sum is σ = 35288352. Its totient is φ = 11397360.

The previous prime is 23158409. The next prime is 23158453. The reversal of 23158442 is 24485132.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40853 + ... + 41415.

It is an arithmetic number, because the mean of its divisors is an integer number (2205522).

Almost surely, 2^23158442 is an apocalyptic number.

23158442 is a deficient number, since it is larger than the sum of its proper divisors (12129910).

23158442 is a wasteful number, since it uses less digits than its factorization.

23158442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853.

The product of its digits is 7680, while the sum is 29.

The square root of 23158442 is about 4812.3218928081. The cubic root of 23158442 is about 285.0382302260.

The spelling of 23158442 in words is "twenty-three million, one hundred fifty-eight thousand, four hundred forty-two".