22407461 has 2 divisors, whose sum is σ = 22407462. Its totient is φ = 22407460.

The previous prime is 22407449. The next prime is 22407487. The reversal of 22407461 is 16470422.

It is an a-pointer prime, because the next prime (22407487) can be obtained adding 22407461 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13734436 + 8673025 = 3706^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 22407461 - 2¹⁴ = 22391077 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22407461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22407491) 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 as a sum of consecutive naturals, namely, 11203730 + 11203731.

It is an arithmetic number, because the mean of its divisors is an integer number (11203731).

Almost surely, 2^22407461 is an apocalyptic number.

It is an amenable number.

22407461 is a deficient number, since it is larger than the sum of its proper divisors (1).

22407461 is an equidigital number, since it uses as much as digits as its factorization.

22407461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 22407461 is about 4733.6519728430. The cubic root of 22407461 is about 281.9232433654.

Adding to 22407461 its reverse (16470422), we get a palindrome (38877883).

The spelling of 22407461 in words is "twenty-two million, four hundred seven thousand, four hundred sixty-one".