20263194 has 48 divisors (see below), whose sum is σ = 50885952. Its totient is φ = 5707584.

The previous prime is 20263193. The next prime is 20263219. The reversal of 20263194 is 49136202.

20263194 is a `hidden beast` number, since 20 + 2 + 631 + 9 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (20263193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8097 + ... + 10299.

It is an arithmetic number, because the mean of its divisors is an integer number (1060124).

Almost surely, 2^20263194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20263194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25442976).

20263194 is an abundant number, since it is smaller than the sum of its proper divisors (30622758).

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

20263194 is a wasteful number, since it uses less digits than its factorization.

20263194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291 (or 2288 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20263194 is about 4501.4657612827. The cubic root of 20263194 is about 272.6272738235.

Adding to 20263194 its reverse (49136202), we get a palindrome (69399396).

The spelling of 20263194 in words is "twenty million, two hundred sixty-three thousand, one hundred ninety-four".