21794232 has 32 divisors (see below), whose sum is σ = 54650880. Its totient is φ = 7242720.

The previous prime is 21794207. The next prime is 21794233. The reversal of 21794232 is 23249712.

It is a self number, because there is not a number n which added to its sum of digits gives 21794232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21794233) 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, 8007 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (1707840).

Almost surely, 2^21794232 is an apocalyptic number.

It is an amenable number.

21794232 is an abundant number, since it is smaller than the sum of its proper divisors (32856648).

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

21794232 is a wasteful number, since it uses less digits than its factorization.

21794232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763 (or 2759 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 21794232 is about 4668.4292861732. The cubic root of 21794232 is about 279.3276042796.

It can be divided in two parts, 217 and 94232, that added together give a palindrome (94449).

The spelling of 21794232 in words is "twenty-one million, seven hundred ninety-four thousand, two hundred thirty-two".