20894016 has 112 divisors (see below), whose sum is σ = 65032128. Its totient is φ = 5836800.

The previous prime is 20894009. The next prime is 20894023. The reversal of 20894016 is 61049802.

It is an interprime number because it is at equal distance from previous prime (20894009) and next prime (20894023).

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, 27076 + ... + 27836.

It is an arithmetic number, because the mean of its divisors is an integer number (580644).

Almost surely, 2^20894016 is an apocalyptic number.

20894016 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 20894016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32516064).

20894016 is an abundant number, since it is smaller than the sum of its proper divisors (44138112).

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

20894016 is a wasteful number, since it uses less digits than its factorization.

20894016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 20894016 is about 4570.9972653678. The cubic root of 20894016 is about 275.4275047696.

It can be divided in two parts, 2089 and 4016, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 20894016 in words is "twenty million, eight hundred ninety-four thousand, sixteen".