2146640346 has 32 divisors (see below), whose sum is σ = 4774195200. Its totient is φ = 714964320.

The previous prime is 2146640339. The next prime is 2146640369. The reversal of 2146640346 is 6430466412.

2146640346 is a `hidden beast` number, since 2 + 1 + 4 + 6 + 640 + 3 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2146640346.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53526 + ... + 84606.

It is an arithmetic number, because the mean of its divisors is an integer number (149193600).

Almost surely, 2^2146640346 is an apocalyptic number.

2146640346 is an abundant number, since it is smaller than the sum of its proper divisors (2627554854).

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

2146640346 is a wasteful number, since it uses less digits than its factorization.

2146640346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32371 (or 32365 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2146640346 is about 46331.8502328582. The cubic root of 2146640346 is about 1289.9902541178.

The spelling of 2146640346 in words is "two billion, one hundred forty-six million, six hundred forty thousand, three hundred forty-six".