350400243 has 16 divisors (see below), whose sum is σ = 511742880. Its totient is φ = 212276736.

The previous prime is 350400199. The next prime is 350400257. The reversal of 350400243 is 342004053.

It is a happy number.

It is not a de Polignac number, because 350400243 - 2⁶ = 350400179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (350400143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116980 + ... + 119937.

It is an arithmetic number, because the mean of its divisors is an integer number (31983930).

Almost surely, 2^350400243 is an apocalyptic number.

350400243 is a deficient number, since it is larger than the sum of its proper divisors (161342637).

350400243 is a wasteful number, since it uses less digits than its factorization.

350400243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236966.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 350400243 is about 18718.9808216153. The cubic root of 350400243 is about 704.9984024912.

Adding to 350400243 its reverse (342004053), we get a palindrome (692404296).

The spelling of 350400243 in words is "three hundred fifty million, four hundred thousand, two hundred forty-three".