350640401 has 4 divisors (see below), whose sum is σ = 350823732. Its totient is φ = 350457072.

The previous prime is 350640397. The next prime is 350640431. The reversal of 350640401 is 104046053.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 149426176 + 201214225 = 12224^2 + 14185^2 .

It is a cyclic number.

It is not a de Polignac number, because 350640401 - 2² = 350640397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350640431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 88766 + ... + 92631.

It is an arithmetic number, because the mean of its divisors is an integer number (87705933).

Almost surely, 2^350640401 is an apocalyptic number.

It is an amenable number.

350640401 is a deficient number, since it is larger than the sum of its proper divisors (183331).

350640401 is a wasteful number, since it uses less digits than its factorization.

350640401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183330.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 350640401 is about 18725.3945485803. The cubic root of 350640401 is about 705.1594301004.

Adding to 350640401 its reverse (104046053), we get a palindrome (454686454).

The spelling of 350640401 in words is "three hundred fifty million, six hundred forty thousand, four hundred one".