203344434 has 12 divisors (see below), whose sum is σ = 440579646. Its totient is φ = 67781472.

The previous prime is 203344423. The next prime is 203344447. The reversal of 203344434 is 434443302.

It can be written as a sum of positive squares in only one way, i.e., 116575209 + 86769225 = 10797^2 + 9315^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203344398 and 203344407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5648439 + ... + 5648474.

Almost surely, 2^203344434 is an apocalyptic number.

203344434 is an abundant number, since it is smaller than the sum of its proper divisors (237235212).

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

203344434 is a wasteful number, since it uses less digits than its factorization.

203344434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11296921 (or 11296918 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 203344434 is about 14259.8889897502. Note that the first 3 decimals coincide. The cubic root of 203344434 is about 588.0452727879.

Adding to 203344434 its reverse (434443302), we get a palindrome (637787736).

The spelling of 203344434 in words is "two hundred three million, three hundred forty-four thousand, four hundred thirty-four".