23140018 has 8 divisors (see below), whose sum is σ = 37865520. Its totient is φ = 10518180.

The previous prime is 23140003. The next prime is 23140037. The reversal of 23140018 is 81004132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23139977 and 23140004.

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 in 3 ways as a sum of consecutive naturals, for example, 525888 + ... + 525931.

It is an arithmetic number, because the mean of its divisors is an integer number (4733190).

Almost surely, 2^23140018 is an apocalyptic number.

23140018 is a deficient number, since it is larger than the sum of its proper divisors (14725502).

23140018 is a wasteful number, since it uses less digits than its factorization.

23140018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051832.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 23140018 is about 4810.4072592661. The cubic root of 23140018 is about 284.9626215471.

It can be divided in two parts, 23 and 140018, that added together give a palindrome (140041).

The spelling of 23140018 in words is "twenty-three million, one hundred forty thousand, eighteen".