350421808 has 30 divisors (see below), whose sum is σ = 746279492. Its totient is φ = 159281760.

The previous prime is 350421803. The next prime is 350421809. The reversal of 350421808 is 808124053.

It is a self number, because there is not a number n which added to its sum of digits gives 350421808.

It is not an unprimeable number, because it can be changed into a prime (350421803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88566 + ... + 92437.

Almost surely, 2^350421808 is an apocalyptic number.

It is an amenable number.

350421808 is an abundant number, since it is smaller than the sum of its proper divisors (395857684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

350421808 is a wasteful number, since it uses less digits than its factorization.

350421808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181033 (or 181016 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 350421808 is about 18719.5568323612. The cubic root of 350421808 is about 705.0128649799.

The spelling of 350421808 in words is "three hundred fifty million, four hundred twenty-one thousand, eight hundred eight".