23919142 has 16 divisors (see below), whose sum is σ = 39972240. Its totient is φ = 10658592.

The previous prime is 23919139. The next prime is 23919143. The reversal of 23919142 is 24191932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23919143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15108 + ... + 16615.

It is an arithmetic number, because the mean of its divisors is an integer number (2498265).

Almost surely, 2^23919142 is an apocalyptic number.

23919142 is a deficient number, since it is larger than the sum of its proper divisors (16053098).

23919142 is a wasteful number, since it uses less digits than its factorization.

23919142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31767.

The product of its digits is 3888, while the sum is 31.

The square root of 23919142 is about 4890.7199878954. The cubic root of 23919142 is about 288.1256123225.

The spelling of 23919142 in words is "twenty-three million, nine hundred nineteen thousand, one hundred forty-two".