20433104 has 10 divisors (see below), whose sum is σ = 39589170. Its totient is φ = 10216544.

The previous prime is 20433097. The next prime is 20433137. The reversal of 20433104 is 40133402.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 2704 = 4520^2 + 52^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638519 + ... + 638550.

It is an arithmetic number, because the mean of its divisors is an integer number (3958917).

Almost surely, 2^20433104 is an apocalyptic number.

It is an amenable number.

20433104 is a deficient number, since it is larger than the sum of its proper divisors (19156066).

20433104 is a wasteful number, since it uses less digits than its factorization.

20433104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277077 (or 1277071 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20433104 is about 4520.2991051478. The cubic root of 20433104 is about 273.3871610561.

Adding to 20433104 its reverse (40133402), we get a palindrome (60566506).

The spelling of 20433104 in words is "twenty million, four hundred thirty-three thousand, one hundred four".