20466356 has 12 divisors (see below), whose sum is σ = 36351168. Its totient is φ = 10080312.

The previous prime is 20466349. The next prime is 20466359. The reversal of 20466356 is 65366402.

It is a super-3 number, since 3×20466356³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466359) 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 in 3 ways as a sum of consecutive naturals, for example, 37916 + ... + 38451.

It is an arithmetic number, because the mean of its divisors is an integer number (3029264).

Almost surely, 2^20466356 is an apocalyptic number.

It is an amenable number.

20466356 is a deficient number, since it is larger than the sum of its proper divisors (15884812).

20466356 is a wasteful number, since it uses less digits than its factorization.

20466356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76438 (or 76436 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 20466356 is about 4523.9756851690. The cubic root of 20466356 is about 273.5353803880.

The spelling of 20466356 in words is "twenty million, four hundred sixty-six thousand, three hundred fifty-six".