23540194 has 8 divisors (see below), whose sum is σ = 35364780. Its totient is φ = 11751936.

The previous prime is 23540173. The next prime is 23540197. The reversal of 23540194 is 49104532.

It can be written as a sum of positive squares in 2 ways, for example, as 18809569 + 4730625 = 4337^2 + 2175^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23540197) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7399 + ... + 10090.

Almost surely, 2^23540194 is an apocalyptic number.

23540194 is a deficient number, since it is larger than the sum of its proper divisors (11824586).

23540194 is a wasteful number, since it uses less digits than its factorization.

23540194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18164.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 23540194 is about 4851.8237808066. The cubic root of 23540194 is about 286.5959259977.

The spelling of 23540194 in words is "twenty-three million, five hundred forty thousand, one hundred ninety-four".