20812926 has 8 divisors (see below), whose sum is σ = 41625864. Its totient is φ = 6937640.

The previous prime is 20812921. The next prime is 20812931. The reversal of 20812926 is 62921802.

It is an interprime number because it is at equal distance from previous prime (20812921) and next prime (20812931).

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

20812926 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20812893 and 20812902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20812921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734405 + ... + 1734416.

It is an arithmetic number, because the mean of its divisors is an integer number (5203233).

Almost surely, 2^20812926 is an apocalyptic number.

20812926 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.

20812926 is a wasteful number, since it uses less digits than its factorization.

20812926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468826.

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

The square root of 20812926 is about 4562.1185867971. The cubic root of 20812926 is about 275.0707300160.

The spelling of 20812926 in words is "twenty million, eight hundred twelve thousand, nine hundred twenty-six".