203434242 has 64 divisors (see below), whose sum is σ = 457228800. Its totient is φ = 59818880.

The previous prime is 203434237. The next prime is 203434271. The reversal of 203434242 is 242434302.

It is a super-2 number, since 2×203434242² = 82770981636229128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346273 + ... + 346859.

It is an arithmetic number, because the mean of its divisors is an integer number (7144200).

Almost surely, 2^203434242 is an apocalyptic number.

203434242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 203434242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228614400).

203434242 is an abundant number, since it is smaller than the sum of its proper divisors (253794558).

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

203434242 is a wasteful number, since it uses less digits than its factorization.

203434242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 203434242 is about 14263.0376147579. The cubic root of 203434242 is about 588.1318310083.

Adding to 203434242 its reverse (242434302), we get a palindrome (445868544).

The spelling of 203434242 in words is "two hundred three million, four hundred thirty-four thousand, two hundred forty-two".