23388043 has 24 divisors (see below), whose sum is σ = 28563840. Its totient is φ = 19071360.

The previous prime is 23388023. The next prime is 23388049. The reversal of 23388043 is 34088332.

It is not a de Polignac number, because 23388043 - 2⁵ = 23388011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23387996 and 23388014.

It is not an unprimeable number, because it can be changed into a prime (23388049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135105 + ... + 135277.

It is an arithmetic number, because the mean of its divisors is an integer number (1190160).

Almost surely, 2^23388043 is an apocalyptic number.

23388043 is a deficient number, since it is larger than the sum of its proper divisors (5175797).

23388043 is a wasteful number, since it uses less digits than its factorization.

23388043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 23388043 is about 4836.1185882896. The cubic root of 23388043 is about 285.9771241912.

The spelling of 23388043 in words is "twenty-three million, three hundred eighty-eight thousand, forty-three".