23442636 has 48 divisors (see below), whose sum is σ = 63386624. Its totient is φ = 6604416.

The previous prime is 23442623. The next prime is 23442649. The reversal of 23442636 is 63624432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23442623) and next prime (23442649).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4221 + ... + 8043.

Almost surely, 2^23442636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23442636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31693312).

23442636 is an abundant number, since it is smaller than the sum of its proper divisors (39943988).

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

23442636 is a wasteful number, since it uses less digits than its factorization.

23442636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910 (or 3908 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 23442636 is about 4841.7595975017. The cubic root of 23442636 is about 286.1994631199.

The spelling of 23442636 in words is "twenty-three million, four hundred forty-two thousand, six hundred thirty-six".