20894466 has 8 divisors (see below), whose sum is σ = 41788944. Its totient is φ = 6964820.

The previous prime is 20894453. The next prime is 20894483. The reversal of 20894466 is 66449802.

It is a sphenic number, since it is the product of 3 distinct primes.

20894466 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1741200 + ... + 1741211.

It is an arithmetic number, because the mean of its divisors is an integer number (5223618).

Almost surely, 2^20894466 is an apocalyptic number.

20894466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20894466 is a wasteful number, since it uses less digits than its factorization.

20894466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482416.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 20894466 is about 4571.0464884969. The cubic root of 20894466 is about 275.4294820739.

It can be divided in two parts, 2089 and 4466, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 20894466 in words is "twenty million, eight hundred ninety-four thousand, four hundred sixty-six".