23312090 has 16 divisors (see below), whose sum is σ = 42355872. Its totient is φ = 9237264.

The previous prime is 23312089. The next prime is 23312099. The reversal of 23312090 is 9021332.

It is not an unprimeable number, because it can be changed into a prime (23312099) 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, 9824 + ... + 11963.

It is an arithmetic number, because the mean of its divisors is an integer number (2647242).

Almost surely, 2^23312090 is an apocalyptic number.

23312090 is a deficient number, since it is larger than the sum of its proper divisors (19043782).

23312090 is a wasteful number, since it uses less digits than its factorization.

23312090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21901.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 23312090 is about 4828.2595207797. The cubic root of 23312090 is about 285.6672168891.

The spelling of 23312090 in words is "twenty-three million, three hundred twelve thousand, ninety".