23093440 has 28 divisors (see below), whose sum is σ = 54992016. Its totient is φ = 9237248.

The previous prime is 23093407. The next prime is 23093443. The reversal of 23093440 is 4439032.

It is not an unprimeable number, because it can be changed into a prime (23093443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35764 + ... + 36403.

Almost surely, 2^23093440 is an apocalyptic number.

23093440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23093440 is an abundant number, since it is smaller than the sum of its proper divisors (31898576).

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

23093440 is an equidigital number, since it uses as much as digits as its factorization.

23093440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72184 (or 72174 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 23093440 is about 4805.5634425112. The cubic root of 23093440 is about 284.7712949228.

The spelling of 23093440 in words is "twenty-three million, ninety-three thousand, four hundred forty".