22746641 has 2 divisors, whose sum is σ = 22746642. Its totient is φ = 22746640.

The previous prime is 22746617. The next prime is 22746671. The reversal of 22746641 is 14664722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 3254416 = 4415^2 + 1804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22746641 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22746598 and 22746607.

It is not a weakly prime, because it can be changed into another prime (22746611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11373320 + 11373321.

It is an arithmetic number, because the mean of its divisors is an integer number (11373321).

Almost surely, 2^22746641 is an apocalyptic number.

It is an amenable number.

22746641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22746641 is an equidigital number, since it uses as much as digits as its factorization.

22746641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 22746641 is about 4769.3438752097. The cubic root of 22746641 is about 283.3386092059.

The spelling of 22746641 in words is "twenty-two million, seven hundred forty-six thousand, six hundred forty-one".