350240021 has 8 divisors (see below), whose sum is σ = 370924224. Its totient is φ = 330010560.

The previous prime is 350240017. The next prime is 350240027. The reversal of 350240021 is 120042053.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 350240021 - 2² = 350240017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350240027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112100 + ... + 115181.

It is an arithmetic number, because the mean of its divisors is an integer number (46365528).

Almost surely, 2^350240021 is an apocalyptic number.

It is an amenable number.

350240021 is a deficient number, since it is larger than the sum of its proper divisors (20684203).

350240021 is a wasteful number, since it uses less digits than its factorization.

350240021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227371.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 350240021 is about 18714.7006655196. The cubic root of 350240021 is about 704.8909316040.

Adding to 350240021 its reverse (120042053), we get a palindrome (470282074).

The spelling of 350240021 in words is "three hundred fifty million, two hundred forty thousand, twenty-one".