1678341292 has 12 divisors (see below), whose sum is σ = 2941641360. Its totient is φ = 837872336.

The previous prime is 1678341281. The next prime is 1678341311. The reversal of 1678341292 is 2921438761.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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, 321667 + ... + 326842.

It is an arithmetic number, because the mean of its divisors is an integer number (245136780).

Almost surely, 2^1678341292 is an apocalyptic number.

It is an amenable number.

1678341292 is a deficient number, since it is larger than the sum of its proper divisors (1263300068).

1678341292 is a wasteful number, since it uses less digits than its factorization.

1678341292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649160 (or 649158 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 1678341292 is about 40967.5639012134. The cubic root of 1678341292 is about 1188.3930224005.

The spelling of 1678341292 in words is "one billion, six hundred seventy-eight million, three hundred forty-one thousand, two hundred ninety-two".