20746441 has 2 divisors, whose sum is σ = 20746442. Its totient is φ = 20746440.

The previous prime is 20746421. The next prime is 20746487. The reversal of 20746441 is 14464702.

It is the 1860-th star number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 1430416 = 4395^2 + 1196^2 .

It is a cyclic number.

It is not a de Polignac number, because 20746441 - 2¹¹ = 20744393 is a prime.

It is not a weakly prime, because it can be changed into another prime (20746421) 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, 10373220 + 10373221.

It is an arithmetic number, because the mean of its divisors is an integer number (10373221).

Almost surely, 2^20746441 is an apocalyptic number.

It is an amenable number.

20746441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20746441 is an equidigital number, since it uses as much as digits as its factorization.

20746441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 20746441 is about 4554.8261218185. The cubic root of 20746441 is about 274.7775214379. Note that the first 3 decimals are identical.

It can be divided in two parts, 2074 and 6441, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 20746441 in words is "twenty million, seven hundred forty-six thousand, four hundred forty-one".