20304054 has 16 divisors (see below), whose sum is σ = 45120240. Its totient is φ = 6768000.

The previous prime is 20304049. The next prime is 20304077. The reversal of 20304054 is 45040302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 187947 + ... + 188054.

It is an arithmetic number, because the mean of its divisors is an integer number (2820015).

Almost surely, 2^20304054 is an apocalyptic number.

20304054 is an abundant number, since it is smaller than the sum of its proper divisors (24816186).

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

20304054 is a wasteful number, since it uses less digits than its factorization.

20304054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376012 (or 376006 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20304054 is about 4506.0019973364. The cubic root of 20304054 is about 272.8103984793.

Subtracting from 20304054 its sum of digits (18), we obtain a square (20304036 = 4506²).

Adding to 20304054 its reverse (45040302), we get a palindrome (65344356).

It can be divided in two parts, 2030 and 4054, that added together give a square (6084 = 78²).

The spelling of 20304054 in words is "twenty million, three hundred four thousand, fifty-four".