203430996 has 18 divisors (see below), whose sum is σ = 514228442. Its totient is φ = 67810320.

The previous prime is 203430991. The next prime is 203431001. The reversal of 203430996 is 699034302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203430991) and next prime (203431001).

It can be written as a sum of positive squares in only one way, i.e., 173290896 + 30140100 = 13164^2 + 5490^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5650861 = 203430996 / (2 + 0 + 3 + 4 + 3 + 0 + 9 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 203430996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203430991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2825395 + ... + 2825466.

Almost surely, 2^203430996 is an apocalyptic number.

It is an amenable number.

203430996 is an abundant number, since it is smaller than the sum of its proper divisors (310797446).

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

203430996 is a wasteful number, since it uses less digits than its factorization.

203430996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5650871 (or 5650866 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 203430996 is about 14262.9238236765. The cubic root of 203430996 is about 588.1287029114.

The spelling of 203430996 in words is "two hundred three million, four hundred thirty thousand, nine hundred ninety-six".