349402381660 has 24 divisors (see below), whose sum is σ = 733871297376. Its totient is φ = 139736896320.

The previous prime is 349402381613. The next prime is 349402381729. The reversal of 349402381660 is 66183204943.

It is a self number, because there is not a number n which added to its sum of digits gives 349402381660.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1384192 + ... + 1617031.

It is an arithmetic number, because the mean of its divisors is an integer number (30577970724).

Almost surely, 2^349402381660 is an apocalyptic number.

It is an amenable number.

349402381660 is an abundant number, since it is smaller than the sum of its proper divisors (384468915716).

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

349402381660 is a wasteful number, since it uses less digits than its factorization.

349402381660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007053 (or 3007051 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 349402381660 in words is "three hundred forty-nine billion, four hundred two million, three hundred eighty-one thousand, six hundred sixty".