24090681 has 4 divisors (see below), whose sum is σ = 32120912. Its totient is φ = 16060452.

The previous prime is 24090653. The next prime is 24090701. The reversal of 24090681 is 18609042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 24090681 - 2⁷ = 24090553 is a prime.

It is a super-2 number, since 2×24090681² = 1160721822087522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24090611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4015111 + ... + 4015116.

It is an arithmetic number, because the mean of its divisors is an integer number (8030228).

Almost surely, 2^24090681 is an apocalyptic number.

It is an amenable number.

24090681 is a deficient number, since it is larger than the sum of its proper divisors (8030231).

24090681 is an equidigital number, since it uses as much as digits as its factorization.

24090681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8030230.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 24090681 is about 4908.2258505493. The cubic root of 24090681 is about 288.8127481181.

The spelling of 24090681 in words is "twenty-four million, ninety thousand, six hundred eighty-one".