23340138 has 16 divisors (see below), whose sum is σ = 46886880. Its totient is φ = 7745616.

The previous prime is 23340137. The next prime is 23340143. The reversal of 23340138 is 83104332.

It is not an unprimeable number, because it can be changed into a prime (23340137) 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, 7120 + ... + 9867.

It is an arithmetic number, because the mean of its divisors is an integer number (2930430).

Almost surely, 2^23340138 is an apocalyptic number.

23340138 is an abundant number, since it is smaller than the sum of its proper divisors (23546742).

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

23340138 is a wasteful number, since it uses less digits than its factorization.

23340138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17221.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23340138 is about 4831.1632139682. The cubic root of 23340138 is about 285.7817380506.

The spelling of 23340138 in words is "twenty-three million, three hundred forty thousand, one hundred thirty-eight".