23542638 has 24 divisors (see below), whose sum is σ = 54773352. Its totient is φ = 6726384.

The previous prime is 23542601. The next prime is 23542657. The reversal of 23542638 is 83624532.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23542599 and 23542608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39745 + ... + 40332.

It is an arithmetic number, because the mean of its divisors is an integer number (2282223).

Almost surely, 2^23542638 is an apocalyptic number.

23542638 is an abundant number, since it is smaller than the sum of its proper divisors (31230714).

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

23542638 is a wasteful number, since it uses less digits than its factorization.

23542638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80096 (or 80089 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 23542638 is about 4852.0756383222. The cubic root of 23542638 is about 286.6058440157.

The spelling of 23542638 in words is "twenty-three million, five hundred forty-two thousand, six hundred thirty-eight".