23259138 has 16 divisors (see below), whose sum is σ = 53163840. Its totient is φ = 6645456.

The previous prime is 23259133. The next prime is 23259149. The reversal of 23259138 is 83195232.

It is a junction number, because it is equal to n+sod(n) for n = 23259099 and 23259108.

It is not an unprimeable number, because it can be changed into a prime (23259133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276853 + ... + 276936.

It is an arithmetic number, because the mean of its divisors is an integer number (3322740).

Almost surely, 2^23259138 is an apocalyptic number.

23259138 is an abundant number, since it is smaller than the sum of its proper divisors (29904702).

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

23259138 is a wasteful number, since it uses less digits than its factorization.

23259138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553801.

The product of its digits is 12960, while the sum is 33.

The square root of 23259138 is about 4822.7728538674. The cubic root of 23259138 is about 285.4507609924.

The spelling of 23259138 in words is "twenty-three million, two hundred fifty-nine thousand, one hundred thirty-eight".