20445030254 has 8 divisors (see below), whose sum is σ = 33455504088. Its totient is φ = 9293195560.

The previous prime is 20445030251. The next prime is 20445030259. The reversal of 20445030254 is 45203054402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20445030251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464659757 + ... + 464659800.

It is an arithmetic number, because the mean of its divisors is an integer number (4181938011).

Almost surely, 2^20445030254 is an apocalyptic number.

20445030254 is a deficient number, since it is larger than the sum of its proper divisors (13010473834).

20445030254 is a wasteful number, since it uses less digits than its factorization.

20445030254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929319570.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 20445030254 its reverse (45203054402), we get a palindrome (65648084656).

The spelling of 20445030254 in words is "twenty billion, four hundred forty-five million, thirty thousand, two hundred fifty-four".