23120738 has 4 divisors (see below), whose sum is σ = 34681110. Its totient is φ = 11560368.

The previous prime is 23120737. The next prime is 23120749. The reversal of 23120738 is 83702132.

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., 14341369 + 8779369 = 3787^2 + 2963^2 .

It is not an unprimeable number, because it can be changed into a prime (23120737) 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 as a sum of consecutive naturals, namely, 5780183 + ... + 5780186.

Almost surely, 2^23120738 is an apocalyptic number.

23120738 is a deficient number, since it is larger than the sum of its proper divisors (11560372).

23120738 is a wasteful number, since it uses less digits than its factorization.

23120738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11560371.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 23120738 is about 4808.4028533391. The cubic root of 23120738 is about 284.8834570175.

The spelling of 23120738 in words is "twenty-three million, one hundred twenty thousand, seven hundred thirty-eight".