20466446 has 32 divisors (see below), whose sum is σ = 41223168. Its totient is φ = 7359840.

The previous prime is 20466437. The next prime is 20466461. The reversal of 20466446 is 64466402.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 3110 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (1288224).

Almost surely, 2^20466446 is an apocalyptic number.

20466446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20466446 is an abundant number, since it is smaller than the sum of its proper divisors (20756722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20466446 is a wasteful number, since it uses less digits than its factorization.

20466446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10256.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 20466446 is about 4523.9856321611. The cubic root of 20466446 is about 273.5357813411.

The spelling of 20466446 in words is "twenty million, four hundred sixty-six thousand, four hundred forty-six".