23445142 has 32 divisors (see below), whose sum is σ = 44416512. Its totient is φ = 9043584.

The previous prime is 23445139. The next prime is 23445143. The reversal of 23445142 is 24154432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23445143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3333 + ... + 7615.

It is an arithmetic number, because the mean of its divisors is an integer number (1388016).

Almost surely, 2^23445142 is an apocalyptic number.

23445142 is a deficient number, since it is larger than the sum of its proper divisors (20971370).

23445142 is a wasteful number, since it uses less digits than its factorization.

23445142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332.

The product of its digits is 3840, while the sum is 25.

The square root of 23445142 is about 4842.0183807995. The cubic root of 23445142 is about 286.2096609250.

Adding to 23445142 its reverse (24154432), we get a palindrome (47599574).

The spelling of 23445142 in words is "twenty-three million, four hundred forty-five thousand, one hundred forty-two".