20302455444 has 96 divisors (see below), whose sum is σ = 49450617216. Its totient is φ = 6477096960.

The previous prime is 20302455443. The next prime is 20302455449. The reversal of 20302455444 is 44455420302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302455443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18506704 + ... + 18507800.

It is an arithmetic number, because the mean of its divisors is an integer number (515110596).

Almost surely, 2^20302455444 is an apocalyptic number.

It is an amenable number.

20302455444 is an abundant number, since it is smaller than the sum of its proper divisors (29148161772).

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

20302455444 is a wasteful number, since it uses less digits than its factorization.

20302455444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 20302455444 its reverse (44455420302), we get a palindrome (64757875746).

The spelling of 20302455444 in words is "twenty billion, three hundred two million, four hundred fifty-five thousand, four hundred forty-four".