23870142 has 24 divisors (see below), whose sum is σ = 54761616. Its totient is φ = 7488576.

The previous prime is 23870131. The next prime is 23870149. The reversal of 23870142 is 24107832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23870149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38698 + ... + 39309.

It is an arithmetic number, because the mean of its divisors is an integer number (2281734).

Almost surely, 2^23870142 is an apocalyptic number.

23870142 is an abundant number, since it is smaller than the sum of its proper divisors (30891474).

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

23870142 is a wasteful number, since it uses less digits than its factorization.

23870142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78032 (or 78029 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 23870142 is about 4885.7079323267. The cubic root of 23870142 is about 287.9287294708.

Adding to 23870142 its reverse (24107832), we get a palindrome (47977974).

The spelling of 23870142 in words is "twenty-three million, eight hundred seventy thousand, one hundred forty-two".