20030894 has 12 divisors (see below), whose sum is σ = 32535936. Its totient is φ = 9244872.

The previous prime is 20030893. The next prime is 20030939. The reversal of 20030894 is 49803002.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29294 + ... + 29969.

It is an arithmetic number, because the mean of its divisors is an integer number (2711328).

Almost surely, 2^20030894 is an apocalyptic number.

20030894 is a deficient number, since it is larger than the sum of its proper divisors (12505042).

20030894 is a wasteful number, since it uses less digits than its factorization.

20030894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59291 (or 59278 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20030894 is about 4475.5886763643. The cubic root of 20030894 is about 271.5814551191.

Adding to 20030894 its reverse (49803002), we get a palindrome (69833896).

The spelling of 20030894 in words is "twenty million, thirty thousand, eight hundred ninety-four".