23867142 has 32 divisors (see below), whose sum is σ = 52184832. Its totient is φ = 7232544.

The previous prime is 23867089. The next prime is 23867143. The reversal of 23867142 is 24176832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23867143) 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, 2943 + ... + 7509.

It is an arithmetic number, because the mean of its divisors is an integer number (1630776).

Almost surely, 2^23867142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23867142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26092416).

23867142 is an abundant number, since it is smaller than the sum of its proper divisors (28317690).

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

23867142 is a wasteful number, since it uses less digits than its factorization.

23867142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652.

The product of its digits is 16128, while the sum is 33.

The square root of 23867142 is about 4885.4009047365. The cubic root of 23867142 is about 287.9166666690.

The spelling of 23867142 in words is "twenty-three million, eight hundred sixty-seven thousand, one hundred forty-two".