20811294 has 48 divisors (see below), whose sum is σ = 51792000. Its totient is φ = 5916240.

The previous prime is 20811283. The next prime is 20811331. The reversal of 20811294 is 49211802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41457 + ... + 41955.

It is an arithmetic number, because the mean of its divisors is an integer number (1079000).

Almost surely, 2^20811294 is an apocalyptic number.

20811294 is an abundant number, since it is smaller than the sum of its proper divisors (30980706).

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

20811294 is a wasteful number, since it uses less digits than its factorization.

20811294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 20811294 is about 4561.9397190230. The cubic root of 20811294 is about 275.0635401385.

It can be divided in two parts, 2081 and 1294, that added together give a cube (3375 = 15³).

The spelling of 20811294 in words is "twenty million, eight hundred eleven thousand, two hundred ninety-four".