203432401 has 16 divisors (see below), whose sum is σ = 219055104. Its totient is φ = 188426304.

The previous prime is 203432357. The next prime is 203432429. The reversal of 203432401 is 104234302.

It is not a de Polignac number, because 203432401 - 2¹⁵ = 203399633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203432491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235296 + ... + 236158.

It is an arithmetic number, because the mean of its divisors is an integer number (13690944).

Almost surely, 2^203432401 is an apocalyptic number.

It is an amenable number.

203432401 is a deficient number, since it is larger than the sum of its proper divisors (15622703).

203432401 is a wasteful number, since it uses less digits than its factorization.

203432401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 203432401 is about 14262.9730771673. The cubic root of 203432401 is about 588.1300568823.

Adding to 203432401 its reverse (104234302), we get a palindrome (307666703).

The spelling of 203432401 in words is "two hundred three million, four hundred thirty-two thousand, four hundred one".