22491041 has 4 divisors (see below), whose sum is σ = 23674800. Its totient is φ = 21307284.

The previous prime is 22491023. The next prime is 22491047. The reversal of 22491041 is 14019422.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14019422 = 2 ⋅7009711.

It is not a de Polignac number, because 22491041 - 2²² = 18296737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22490998 and 22491016.

It is not an unprimeable number, because it can be changed into a prime (22491047) 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, 591851 + ... + 591888.

It is an arithmetic number, because the mean of its divisors is an integer number (5918700).

Almost surely, 2^22491041 is an apocalyptic number.

It is an amenable number.

22491041 is a deficient number, since it is larger than the sum of its proper divisors (1183759).

22491041 is a wasteful number, since it uses less digits than its factorization.

22491041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183758.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 22491041 is about 4742.4720347093. The cubic root of 22491041 is about 282.2733337265.

The spelling of 22491041 in words is "twenty-two million, four hundred ninety-one thousand, forty-one".