22078841 has 4 divisors (see below), whose sum is σ = 22358400. Its totient is φ = 21799284.

The previous prime is 22078813. The next prime is 22078843. The reversal of 22078841 is 14887022.

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 not a de Polignac number, because 22078841 - 2¹⁰ = 22077817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22078798 and 22078807.

It is not an unprimeable number, because it can be changed into a prime (22078843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139661 + ... + 139818.

It is an arithmetic number, because the mean of its divisors is an integer number (5589600).

Almost surely, 2^22078841 is an apocalyptic number.

It is an amenable number.

22078841 is a deficient number, since it is larger than the sum of its proper divisors (279559).

22078841 is an equidigital number, since it uses as much as digits as its factorization.

22078841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279558.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 22078841 is about 4698.8127223800. The cubic root of 22078841 is about 280.5382545958.

The spelling of 22078841 in words is "twenty-two million, seventy-eight thousand, eight hundred forty-one".