23840313 has 24 divisors (see below), whose sum is σ = 37297152. Its totient is φ = 13505184.

The previous prime is 23840303. The next prime is 23840317. The reversal of 23840313 is 31304832.

It is not a de Polignac number, because 23840313 - 2⁵ = 23840281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23840317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18031 + ... + 19307.

It is an arithmetic number, because the mean of its divisors is an integer number (1554048).

Almost surely, 2^23840313 is an apocalyptic number.

It is an amenable number.

23840313 is a deficient number, since it is larger than the sum of its proper divisors (13456839).

23840313 is a wasteful number, since it uses less digits than its factorization.

23840313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23840313 is about 4882.6542986372. The cubic root of 23840313 is about 287.8087440638.

The spelling of 23840313 in words is "twenty-three million, eight hundred forty thousand, three hundred thirteen".