20204144334 has 64 divisors (see below), whose sum is σ = 51109332480. Its totient is φ = 5856269760.

The previous prime is 20204144329. The next prime is 20204144351. The reversal of 20204144334 is 43344140202.

It is a happy number.

20204144334 is a `hidden beast` number, since 20 + 204 + 1 + 4 + 433 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20204144298 and 20204144307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 725767 + ... + 753090.

It is an arithmetic number, because the mean of its divisors is an integer number (798583320).

Almost surely, 2^20204144334 is an apocalyptic number.

20204144334 is an abundant number, since it is smaller than the sum of its proper divisors (30905188146).

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

20204144334 is a wasteful number, since it uses less digits than its factorization.

20204144334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478902 (or 1478896 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20204144334 its reverse (43344140202), we get a palindrome (63548284536).

The spelling of 20204144334 in words is "twenty billion, two hundred four million, one hundred forty-four thousand, three hundred thirty-four".