350503421 has 4 divisors (see below), whose sum is σ = 350986272. Its totient is φ = 350020572.

The previous prime is 350503397. The next prime is 350503427. The reversal of 350503421 is 124305053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 350503421 - 2¹⁸ = 350241277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350503427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240335 + ... + 241788.

It is an arithmetic number, because the mean of its divisors is an integer number (87746568).

Almost surely, 2^350503421 is an apocalyptic number.

It is an amenable number.

350503421 is a deficient number, since it is larger than the sum of its proper divisors (482851).

350503421 is an equidigital number, since it uses as much as digits as its factorization.

350503421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482850.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 350503421 is about 18721.7365914597. The cubic root of 350503421 is about 705.0675930699.

Adding to 350503421 its reverse (124305053), we get a palindrome (474808474).

The spelling of 350503421 in words is "three hundred fifty million, five hundred three thousand, four hundred twenty-one".