20433484 has 12 divisors (see below), whose sum is σ = 35792064. Its totient is φ = 10207184.

The previous prime is 20433481. The next prime is 20433533. The reversal of 20433484 is 48433402.

It is not an unprimeable number, because it can be changed into a prime (20433481) 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 3 ways as a sum of consecutive naturals, for example, 4869 + ... + 8035.

It is an arithmetic number, because the mean of its divisors is an integer number (2982672).

Almost surely, 2^20433484 is an apocalyptic number.

It is an amenable number.

20433484 is a deficient number, since it is larger than the sum of its proper divisors (15358580).

20433484 is a wasteful number, since it uses less digits than its factorization.

20433484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4784 (or 4782 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 20433484 is about 4520.3411375692. The cubic root of 20433484 is about 273.3888557974.

Adding to 20433484 its reverse (48433402), we get a palindrome (68866886).

The spelling of 20433484 in words is "twenty million, four hundred thirty-three thousand, four hundred eighty-four".