20433012 has 12 divisors (see below), whose sum is σ = 47677056. Its totient is φ = 6811000.

The previous prime is 20432981. The next prime is 20433013. The reversal of 20433012 is 21033402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20432982 and 20433000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20433013) 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, 851364 + ... + 851387.

It is an arithmetic number, because the mean of its divisors is an integer number (3973088).

Almost surely, 2^20433012 is an apocalyptic number.

It is an amenable number.

20433012 is an abundant number, since it is smaller than the sum of its proper divisors (27244044).

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

20433012 is a wasteful number, since it uses less digits than its factorization.

20433012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702758 (or 1702756 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20433012 is about 4520.2889288186. The cubic root of 20433012 is about 273.3867507471.

Adding to 20433012 its reverse (21033402), we get a palindrome (41466414).

It can be divided in two parts, 2043 and 3012, that multiplied together give a palindrome (6153516).

The spelling of 20433012 in words is "twenty million, four hundred thirty-three thousand, twelve".