22740041 has 4 divisors (see below), whose sum is σ = 22778112. Its totient is φ = 22701972.

The previous prime is 22739993. The next prime is 22740043. The reversal of 22740041 is 14004722.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22740041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22739995 and 22740022.

It is not an unprimeable number, because it can be changed into a prime (22740043) 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, 18125 + ... + 19338.

It is an arithmetic number, because the mean of its divisors is an integer number (5694528).

Almost surely, 2^22740041 is an apocalyptic number.

It is an amenable number.

22740041 is a deficient number, since it is larger than the sum of its proper divisors (38071).

22740041 is an equidigital number, since it uses as much as digits as its factorization.

22740041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38070.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 22740041 is about 4768.6519059374. The cubic root of 22740041 is about 283.3112027313.

Adding to 22740041 its reverse (14004722), we get a palindrome (36744763).

The spelling of 22740041 in words is "twenty-two million, seven hundred forty thousand, forty-one".