23942638 has 8 divisors (see below), whose sum is σ = 35975520. Its totient is φ = 11950800.

The previous prime is 23942617. The next prime is 23942669. The reversal of 23942638 is 83624932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23942597 and 23942606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8758 + ... + 11161.

It is an arithmetic number, because the mean of its divisors is an integer number (4496940).

Almost surely, 2^23942638 is an apocalyptic number.

23942638 is a deficient number, since it is larger than the sum of its proper divisors (12032882).

23942638 is a wasteful number, since it uses less digits than its factorization.

23942638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20522.

The product of its digits is 62208, while the sum is 37.

The square root of 23942638 is about 4893.1214985937. The cubic root of 23942638 is about 288.2199242884.

The spelling of 23942638 in words is "twenty-three million, nine hundred forty-two thousand, six hundred thirty-eight".