23940291 has 8 divisors (see below), whose sum is σ = 32002384. Its totient is φ = 15919200.

The previous prime is 23940281. The next prime is 23940331. The reversal of 23940291 is 19204932.

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

It is not a de Polignac number, because 23940291 - 2¹³ = 23932099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23940251) 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 7 ways as a sum of consecutive naturals, for example, 8860 + ... + 11241.

It is an arithmetic number, because the mean of its divisors is an integer number (4000298).

Almost surely, 2^23940291 is an apocalyptic number.

23940291 is a deficient number, since it is larger than the sum of its proper divisors (8062093).

23940291 is a wasteful number, since it uses less digits than its factorization.

23940291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20501.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 23940291 is about 4892.8816662576. The cubic root of 23940291 is about 288.2105063027.

The spelling of 23940291 in words is "twenty-three million, nine hundred forty thousand, two hundred ninety-one".