23315842 has 16 divisors (see below), whose sum is σ = 38227392. Its totient is φ = 10577520.

The previous prime is 23315833. The next prime is 23315849. The reversal of 23315842 is 24851332.

It is a self number, because there is not a number n which added to its sum of digits gives 23315842.

It is not an unprimeable number, because it can be changed into a prime (23315849) 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 in 7 ways as a sum of consecutive naturals, for example, 21403 + ... + 22465.

It is an arithmetic number, because the mean of its divisors is an integer number (2389212).

Almost surely, 2^23315842 is an apocalyptic number.

23315842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23315842 is a deficient number, since it is larger than the sum of its proper divisors (14911550).

23315842 is a wasteful number, since it uses less digits than its factorization.

23315842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073.

The product of its digits is 5760, while the sum is 28.

The square root of 23315842 is about 4828.6480509559. The cubic root of 23315842 is about 285.6825417828.

The spelling of 23315842 in words is "twenty-three million, three hundred fifteen thousand, eight hundred forty-two".