23945242 has 8 divisors (see below), whose sum is σ = 37156500. Its totient is φ = 11559744.

The previous prime is 23945203. The next prime is 23945249. The reversal of 23945242 is 24254932.

It can be written as a sum of positive squares in 2 ways, for example, as 21631801 + 2313441 = 4651^2 + 1521^2 .

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

It is a super-2 number, since 2×23945242² = 1146749228877128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23945249) 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 3 ways as a sum of consecutive naturals, for example, 206367 + ... + 206482.

Almost surely, 2^23945242 is an apocalyptic number.

23945242 is a deficient number, since it is larger than the sum of its proper divisors (13211258).

23945242 is a wasteful number, since it uses less digits than its factorization.

23945242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412880.

The product of its digits is 17280, while the sum is 31.

The square root of 23945242 is about 4893.3875791725. The cubic root of 23945242 is about 288.2303728374.

The spelling of 23945242 in words is "twenty-three million, nine hundred forty-five thousand, two hundred forty-two".