23436638 has 8 divisors (see below), whose sum is σ = 35483832. Its totient is φ = 11608696.

The previous prime is 23436619. The next prime is 23436641. The reversal of 23436638 is 83663432.

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 = 23436598 and 23436607.

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, 54545 + ... + 54972.

It is an arithmetic number, because the mean of its divisors is an integer number (4435479).

Almost surely, 2^23436638 is an apocalyptic number.

23436638 is a deficient number, since it is larger than the sum of its proper divisors (12047194).

23436638 is a wasteful number, since it uses less digits than its factorization.

23436638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109626.

The product of its digits is 62208, while the sum is 35.

The square root of 23436638 is about 4841.1401549635. The cubic root of 23436638 is about 286.1750521734.

The spelling of 23436638 in words is "twenty-three million, four hundred thirty-six thousand, six hundred thirty-eight".