20796406 has 16 divisors (see below), whose sum is σ = 33186240. Its totient is φ = 9740160.

The previous prime is 20796401. The next prime is 20796449. The reversal of 20796406 is 60469702.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20796401) 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, 6451 + ... + 9121.

It is an arithmetic number, because the mean of its divisors is an integer number (2074140).

Almost surely, 2^20796406 is an apocalyptic number.

20796406 is a deficient number, since it is larger than the sum of its proper divisors (12389834).

20796406 is a wasteful number, since it uses less digits than its factorization.

20796406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 20796406 is about 4560.3076650595. The cubic root of 20796406 is about 274.9979327668.

The spelling of 20796406 in words is "twenty million, seven hundred ninety-six thousand, four hundred six".