20926770 has 32 divisors (see below), whose sum is σ = 50537088. Its totient is φ = 5545728.

The previous prime is 20926751. The next prime is 20926783. The reversal of 20926770 is 7762902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2922 + ... + 7098.

It is an arithmetic number, because the mean of its divisors is an integer number (1579284).

Almost surely, 2^20926770 is an apocalyptic number.

20926770 is an abundant number, since it is smaller than the sum of its proper divisors (29610318).

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

20926770 is a wasteful number, since it uses less digits than its factorization.

20926770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 20926770 is about 4574.5786691235. The cubic root of 20926770 is about 275.5713520567.

The spelling of 20926770 in words is "twenty million, nine hundred twenty-six thousand, seven hundred seventy".