20946726 has 24 divisors (see below), whose sum is σ = 45540144. Its totient is φ = 6958320.

The previous prime is 20946707. The next prime is 20946743. The reversal of 20946726 is 62764902.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3871 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (1897506).

Almost surely, 2^20946726 is an apocalyptic number.

20946726 is an abundant number, since it is smaller than the sum of its proper divisors (24593418).

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

20946726 is a wasteful number, since it uses less digits than its factorization.

20946726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996 (or 3993 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 20946726 is about 4576.7593338518. The cubic root of 20946726 is about 275.6589201933.

The spelling of 20946726 in words is "twenty million, nine hundred forty-six thousand, seven hundred twenty-six".