350405138 has 8 divisors (see below), whose sum is σ = 548460288. Its totient is φ = 167585044.

The previous prime is 350405131. The next prime is 350405149. The reversal of 350405138 is 831504053.

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

It is a self number, because there is not a number n which added to its sum of digits gives 350405138.

It is not an unprimeable number, because it can be changed into a prime (350405131) 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 3 ways as a sum of consecutive naturals, for example, 3808706 + ... + 3808797.

It is an arithmetic number, because the mean of its divisors is an integer number (68557536).

Almost surely, 2^350405138 is an apocalyptic number.

350405138 is a deficient number, since it is larger than the sum of its proper divisors (198055150).

350405138 is a wasteful number, since it uses less digits than its factorization.

350405138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7617528.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 350405138 is about 18719.1115707984. Note that the first 3 decimals coincide. The cubic root of 350405138 is about 705.0016853572.

The spelling of 350405138 in words is "three hundred fifty million, four hundred five thousand, one hundred thirty-eight".