351640323400 has 48 divisors (see below), whose sum is σ = 818701171200. Its totient is φ = 140460444480.

The previous prime is 351640323343. The next prime is 351640323403. The reversal of 351640323400 is 4323046153.

It is not an unprimeable number, because it can be changed into a prime (351640323403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1078872 + ... + 1366471.

It is an arithmetic number, because the mean of its divisors is an integer number (17056274400).

Almost surely, 2^351640323400 is an apocalyptic number.

It is an amenable number.

351640323400 is an abundant number, since it is smaller than the sum of its proper divisors (467060847800).

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

351640323400 is a wasteful number, since it uses less digits than its factorization.

351640323400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446078 (or 2446069 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 351640323400 its reverse (4323046153), we get a palindrome (355963369553).

The spelling of 351640323400 in words is "three hundred fifty-one billion, six hundred forty million, three hundred twenty-three thousand, four hundred".