203240434 has 8 divisors (see below), whose sum is σ = 305622108. Its totient is φ = 101366400.

The previous prime is 203240431. The next prime is 203240437. The reversal of 203240434 is 434042302.

It is an interprime number because it is at equal distance from previous prime (203240431) and next prime (203240437).

It can be written as a sum of positive squares in 2 ways, for example, as 198387225 + 4853209 = 14085^2 + 2203^2 .

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

It is not an unprimeable number, because it can be changed into a prime (203240431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125907 + ... + 127510.

Almost surely, 2^203240434 is an apocalyptic number.

203240434 is a deficient number, since it is larger than the sum of its proper divisors (102381674).

203240434 is a wasteful number, since it uses less digits than its factorization.

203240434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253820.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 203240434 is about 14256.2419311683. The cubic root of 203240434 is about 587.9450042661.

Adding to 203240434 its reverse (434042302), we get a palindrome (637282736).

The spelling of 203240434 in words is "two hundred three million, two hundred forty thousand, four hundred thirty-four".