22618741 has 2 divisors, whose sum is σ = 22618742. Its totient is φ = 22618740.

The previous prime is 22618733. The next prime is 22618763. The reversal of 22618741 is 14781622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22600516 + 18225 = 4754^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 22618741 - 2³ = 22618733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22618711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11309370 + 11309371.

It is an arithmetic number, because the mean of its divisors is an integer number (11309371).

Almost surely, 2^22618741 is an apocalyptic number.

It is an amenable number.

22618741 is a deficient number, since it is larger than the sum of its proper divisors (1).

22618741 is an equidigital number, since it uses as much as digits as its factorization.

22618741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 22618741 is about 4755.9164206281. The cubic root of 22618741 is about 282.8065578618.

The spelling of 22618741 in words is "twenty-two million, six hundred eighteen thousand, seven hundred forty-one".