23042391 has 8 divisors (see below), whose sum is σ = 31244160. Its totient is φ = 15101112.

The previous prime is 23042387. The next prime is 23042401. The reversal of 23042391 is 19324032.

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

It is not a de Polignac number, because 23042391 - 2² = 23042387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23042311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64915 + ... + 65268.

It is an arithmetic number, because the mean of its divisors is an integer number (3905520).

Almost surely, 2^23042391 is an apocalyptic number.

23042391 is a deficient number, since it is larger than the sum of its proper divisors (8201769).

23042391 is a wasteful number, since it uses less digits than its factorization.

23042391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130245.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 23042391 is about 4800.2490560387. The cubic root of 23042391 is about 284.5613072269.

The spelling of 23042391 in words is "twenty-three million, forty-two thousand, three hundred ninety-one".