203434401 has 8 divisors (see below), whose sum is σ = 274679680. Its totient is φ = 133906032.

The previous prime is 203434367. The next prime is 203434403. The reversal of 203434401 is 104434302.

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

It is a de Polignac number, because none of the positive numbers 2^k-203434401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203434403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428950 + ... + 429423.

It is an arithmetic number, because the mean of its divisors is an integer number (34334960).

Almost surely, 2^203434401 is an apocalyptic number.

It is an amenable number.

203434401 is a deficient number, since it is larger than the sum of its proper divisors (71245279).

203434401 is an equidigital number, since it uses as much as digits as its factorization.

203434401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858455.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 203434401 is about 14263.0431886046. The cubic root of 203434401 is about 588.1319842322.

Adding to 203434401 its reverse (104434302), we get a palindrome (307868703).

Subtracting from 203434401 its reverse (104434302), we obtain a palindrome (99000099).

The spelling of 203434401 in words is "two hundred three million, four hundred thirty-four thousand, four hundred one".