23140332 has 36 divisors (see below), whose sum is σ = 61936056. Its totient is φ = 7259520.

The previous prime is 23140319. The next prime is 23140357. The reversal of 23140332 is 23304132.

23140332 is a `hidden beast` number, since 231 + 403 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18294 + ... + 19517.

It is an arithmetic number, because the mean of its divisors is an integer number (1720446).

Almost surely, 2^23140332 is an apocalyptic number.

It is an amenable number.

23140332 is an abundant number, since it is smaller than the sum of its proper divisors (38795724).

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

23140332 is a wasteful number, since it uses less digits than its factorization.

23140332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37838 (or 37833 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23140332 is about 4810.4398967246. The cubic root of 23140332 is about 284.9639104810.

Adding to 23140332 its reverse (23304132), we get a palindrome (46444464).

The spelling of 23140332 in words is "twenty-three million, one hundred forty thousand, three hundred thirty-two".