350440221 has 8 divisors (see below), whose sum is σ = 467864320. Its totient is φ = 233321472.

The previous prime is 350440183. The next prime is 350440229. The reversal of 350440221 is 122044053.

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

It is not a de Polignac number, because 350440221 - 2⁶ = 350440157 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 (350440229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73645 + ... + 78258.

It is an arithmetic number, because the mean of its divisors is an integer number (58483040).

Almost surely, 2^350440221 is an apocalyptic number.

It is an amenable number.

350440221 is a deficient number, since it is larger than the sum of its proper divisors (117424099).

350440221 is a wasteful number, since it uses less digits than its factorization.

350440221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152675.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 350440221 is about 18720.0486377573. The cubic root of 350440221 is about 705.0252131217.

Adding to 350440221 its reverse (122044053), we get a palindrome (472484274).

The spelling of 350440221 in words is "three hundred fifty million, four hundred forty thousand, two hundred twenty-one".