23338138 has 4 divisors (see below), whose sum is σ = 35007210. Its totient is φ = 11669068.

The previous prime is 23338129. The next prime is 23338151. The reversal of 23338138 is 83183332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15737089 + 7601049 = 3967^2 + 2757^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5834533 + ... + 5834536.

Almost surely, 2^23338138 is an apocalyptic number.

23338138 is a deficient number, since it is larger than the sum of its proper divisors (11669072).

23338138 is a wasteful number, since it uses less digits than its factorization.

23338138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11669071.

The product of its digits is 10368, while the sum is 31.

The square root of 23338138 is about 4830.9562200459. The cubic root of 23338138 is about 285.7735750054.

The spelling of 23338138 in words is "twenty-three million, three hundred thirty-eight thousand, one hundred thirty-eight".