20966304 has 96 divisors (see below), whose sum is σ = 60419520. Its totient is φ = 6336512.

The previous prime is 20966279. The next prime is 20966357. The reversal of 20966304 is 40366902.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47107 + ... + 47549.

It is an arithmetic number, because the mean of its divisors is an integer number (629370).

Almost surely, 2^20966304 is an apocalyptic number.

20966304 is a gapful number since it is divisible by the number (24) 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 20966304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30209760).

20966304 is an abundant number, since it is smaller than the sum of its proper divisors (39453216).

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

20966304 is a wasteful number, since it uses less digits than its factorization.

20966304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20966304 is about 4578.8976839410. The cubic root of 20966304 is about 275.7447756123.

The spelling of 20966304 in words is "twenty million, nine hundred sixty-six thousand, three hundred four".