346440120646 has 8 divisors (see below), whose sum is σ = 520401495744. Its totient is φ = 172972955400.

The previous prime is 346440120641. The next prime is 346440120661. The reversal of 346440120646 is 646021044643.

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

It is a junction number, because it is equal to n+sod(n) for n = 346440120599 and 346440120608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346440120641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123550710 + ... + 123553513.

It is an arithmetic number, because the mean of its divisors is an integer number (65050186968).

Almost surely, 2^346440120646 is an apocalyptic number.

346440120646 is a deficient number, since it is larger than the sum of its proper divisors (173961375098).

346440120646 is a wasteful number, since it uses less digits than its factorization.

346440120646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247104926.

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 346440120646 in words is "three hundred forty-six billion, four hundred forty million, one hundred twenty thousand, six hundred forty-six".