20791016 has 32 divisors (see below), whose sum is σ = 42002400. Its totient is φ = 9616320.

The previous prime is 20791007. The next prime is 20791019. The reversal of 20791016 is 61019702.

It is not an unprimeable number, because it can be changed into a prime (20791019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4946 + ... + 8126.

It is an arithmetic number, because the mean of its divisors is an integer number (1312575).

Almost surely, 2^20791016 is an apocalyptic number.

It is an amenable number.

20791016 is an abundant number, since it is smaller than the sum of its proper divisors (21211384).

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

20791016 is a wasteful number, since it uses less digits than its factorization.

20791016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249 (or 3245 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 20791016 is about 4559.7166578637. The cubic root of 20791016 is about 274.9741727811.

The spelling of 20791016 in words is "twenty million, seven hundred ninety-one thousand, sixteen".