203464234644 has 48 divisors (see below), whose sum is σ = 523728192960. Its totient is φ = 60963063040.

The previous prime is 203464234637. The next prime is 203464234661. The reversal of 203464234644 is 446432464302.

It is a junction number, because it is equal to n+sod(n) for n = 203464234596 and 203464234605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8647779 + ... + 8671274.

It is an arithmetic number, because the mean of its divisors is an integer number (10911004020).

Almost surely, 2^203464234644 is an apocalyptic number.

It is an amenable number.

203464234644 is an abundant number, since it is smaller than the sum of its proper divisors (320263958316).

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

203464234644 is a wasteful number, since it uses less digits than its factorization.

203464234644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17319160 (or 17319158 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 42.

Adding to 203464234644 its reverse (446432464302), we get a palindrome (649896698946).

It can be divided in two parts, 203464234 and 644, that added together give a triangular number (203464878 = T₂₀₁₇₂).

The spelling of 203464234644 in words is "two hundred three billion, four hundred sixty-four million, two hundred thirty-four thousand, six hundred forty-four".