200442993 has 16 divisors (see below), whose sum is σ = 278470656. Its totient is φ = 128103120.

The previous prime is 200442961. The next prime is 200443049. The reversal of 200442993 is 399244002.

200442993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200442993 - 2⁵ = 200442961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200442793) 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, 121 + ... + 20022.

It is an arithmetic number, because the mean of its divisors is an integer number (17404416).

Almost surely, 2^200442993 is an apocalyptic number.

It is an amenable number.

200442993 is a deficient number, since it is larger than the sum of its proper divisors (78027663).

200442993 is a wasteful number, since it uses less digits than its factorization.

200442993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20284.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 200442993 is about 14157.7891282502. The cubic root of 200442993 is about 585.2350023768.

Adding to 200442993 its reverse (399244002), we get a palindrome (599686995).

The spelling of 200442993 in words is "two hundred million, four hundred forty-two thousand, nine hundred ninety-three".