350638866 has 12 divisors (see below), whose sum is σ = 759717582. Its totient is φ = 116879616.

The previous prime is 350638859. The next prime is 350638877. The reversal of 350638866 is 668836053.

350638866 is a `hidden beast` number, since 3 + 5 + 0 + 638 + 8 + 6 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 279725625 + 70913241 = 16725^2 + 8421^2 .

It is a super-2 number, since 2×350638866² = 245895228699531912, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 9739951 + ... + 9739986.

Almost surely, 2^350638866 is an apocalyptic number.

350638866 is an abundant number, since it is smaller than the sum of its proper divisors (409078716).

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

350638866 is a wasteful number, since it uses less digits than its factorization.

350638866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19479945 (or 19479942 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 350638866 is about 18725.3535614151. The cubic root of 350638866 is about 705.1584011057.

The spelling of 350638866 in words is "three hundred fifty million, six hundred thirty-eight thousand, eight hundred sixty-six".