350221013 has 8 divisors (see below), whose sum is σ = 354072600. Its totient is φ = 346382848.

The previous prime is 350221009. The next prime is 350221031. The reversal of 350221013 is 310122053.

It can be written as a sum of positive squares in 4 ways, for example, as 2845969 + 347375044 = 1687^2 + 18638^2 .

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 350221013 - 2² = 350221009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 350220982 and 350221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350221213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54473 + ... + 60561.

It is an arithmetic number, because the mean of its divisors is an integer number (44259075).

Almost surely, 2^350221013 is an apocalyptic number.

It is an amenable number.

350221013 is a deficient number, since it is larger than the sum of its proper divisors (3851587).

350221013 is a wasteful number, since it uses less digits than its factorization.

350221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 350221013 is about 18714.1928225612. The cubic root of 350221013 is about 704.8781795783.

Adding to 350221013 its reverse (310122053), we get a palindrome (660343066).

The spelling of 350221013 in words is "three hundred fifty million, two hundred twenty-one thousand, thirteen".