200431442 has 8 divisors (see below), whose sum is σ = 308772876. Its totient is φ = 97507152.

The previous prime is 200431417. The next prime is 200431447. The reversal of 200431442 is 244134002.

It can be written as a sum of positive squares in 2 ways, for example, as 171583801 + 28847641 = 13099^2 + 5371^2 .

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 (200431447) 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, 1354193 + ... + 1354340.

Almost surely, 2^200431442 is an apocalyptic number.

200431442 is a deficient number, since it is larger than the sum of its proper divisors (108341434).

200431442 is a wasteful number, since it uses less digits than its factorization.

200431442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708572.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 200431442 is about 14157.3811843858. The cubic root of 200431442 is about 585.2237603119.

Adding to 200431442 its reverse (244134002), we get a palindrome (444565444).

The spelling of 200431442 in words is "two hundred million, four hundred thirty-one thousand, four hundred forty-two".