23638043 has 16 divisors (see below), whose sum is σ = 28982016. Its totient is φ = 18971040.

The previous prime is 23637989. The next prime is 23638051. The reversal of 23638043 is 34083632.

It is not a de Polignac number, because 23638043 - 2¹² = 23633947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23637997 and 23638015.

It is not an unprimeable number, because it can be changed into a prime (23638063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305 + ... + 6882.

It is an arithmetic number, because the mean of its divisors is an integer number (1811376).

Almost surely, 2^23638043 is an apocalyptic number.

23638043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23638043 is a deficient number, since it is larger than the sum of its proper divisors (5343973).

23638043 is a wasteful number, since it uses less digits than its factorization.

23638043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 23638043 is about 4861.8970577337. The cubic root of 23638043 is about 286.9924726989.

The spelling of 23638043 in words is "twenty-three million, six hundred thirty-eight thousand, forty-three".