20466056 has 64 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 8955648.

The previous prime is 20466053. The next prime is 20466071. The reversal of 20466056 is 65066402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259025 + ... + 259103.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^20466056 is an apocalyptic number.

20466056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20466056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21772800).

20466056 is an abundant number, since it is smaller than the sum of its proper divisors (23079544).

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

20466056 is a wasteful number, since it uses less digits than its factorization.

20466056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20466056 is about 4523.9425283706. The cubic root of 20466056 is about 273.5340438691.

The spelling of 20466056 in words is "twenty million, four hundred sixty-six thousand, fifty-six".