20466469 has 2 divisors, whose sum is σ = 20466470. Its totient is φ = 20466468.

The previous prime is 20466463. The next prime is 20466473. The reversal of 20466469 is 96466402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14025025 + 6441444 = 3745^2 + 2538^2 .

It is a cyclic number.

It is not a de Polignac number, because 20466469 - 2³ = 20466461 is a prime.

It is a super-2 number, since 2×20466469² = 837752706655922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20466461) 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, 10233234 + 10233235.

It is an arithmetic number, because the mean of its divisors is an integer number (10233235).

Almost surely, 2^20466469 is an apocalyptic number.

It is an amenable number.

20466469 is a deficient number, since it is larger than the sum of its proper divisors (1).

20466469 is an equidigital number, since it uses as much as digits as its factorization.

20466469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 20466469 is about 4523.9881741667. The cubic root of 20466469 is about 273.5358838067.

It can be divided in two parts, 2046 and 6469, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 20466469 in words is "twenty million, four hundred sixty-six thousand, four hundred sixty-nine".