20444120430 has 32 divisors (see below), whose sum is σ = 50757818400. Its totient is φ = 5263773312.

The previous prime is 20444120407. The next prime is 20444120443. The reversal of 20444120430 is 3402144402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20444120430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11748625 + ... + 11750364.

It is an arithmetic number, because the mean of its divisors is an integer number (1586181825).

Almost surely, 2^20444120430 is an apocalyptic number.

20444120430 is an abundant number, since it is smaller than the sum of its proper divisors (30313697970).

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

20444120430 is a wasteful number, since it uses less digits than its factorization.

20444120430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23499028.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20444120430 its reverse (3402144402), we get a palindrome (23846264832).

The spelling of 20444120430 in words is "twenty billion, four hundred forty-four million, one hundred twenty thousand, four hundred thirty".