350620391 has 4 divisors (see below), whose sum is σ = 382494984. Its totient is φ = 318745800.

The previous prime is 350620381. The next prime is 350620429. The reversal of 350620391 is 193026053.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 350620391 - 2⁶ = 350620327 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 (350620301) 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, 15937280 + ... + 15937301.

It is an arithmetic number, because the mean of its divisors is an integer number (95623746).

Almost surely, 2^350620391 is an apocalyptic number.

350620391 is a deficient number, since it is larger than the sum of its proper divisors (31874593).

350620391 is a wasteful number, since it uses less digits than its factorization.

350620391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31874592.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 350620391 is about 18724.8602397989. The cubic root of 350620391 is about 705.1460160647.

The spelling of 350620391 in words is "three hundred fifty million, six hundred twenty thousand, three hundred ninety-one".