20794836 has 12 divisors (see below), whose sum is σ = 48521312. Its totient is φ = 6931608.

The previous prime is 20794771. The next prime is 20794847. The reversal of 20794836 is 63849702.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20794794 and 20794803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866440 + ... + 866463.

Almost surely, 2^20794836 is an apocalyptic number.

It is an amenable number.

20794836 is an abundant number, since it is smaller than the sum of its proper divisors (27726476).

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

20794836 is a wasteful number, since it uses less digits than its factorization.

20794836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732910 (or 1732908 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 20794836 is about 4560.1355243019. The cubic root of 20794836 is about 274.9910123784.

The spelling of 20794836 in words is "twenty million, seven hundred ninety-four thousand, eight hundred thirty-six".