1966940876 has 24 divisors (see below), whose sum is σ = 3691684080. Its totient is φ = 914127552.

The previous prime is 1966940869. The next prime is 1966940881. The reversal of 1966940876 is 6780496691.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240131 + ... + 248186.

It is an arithmetic number, because the mean of its divisors is an integer number (153820170).

Almost surely, 2^1966940876 is an apocalyptic number.

It is an amenable number.

1966940876 is a deficient number, since it is larger than the sum of its proper divisors (1724743204).

1966940876 is a wasteful number, since it uses less digits than its factorization.

1966940876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488393 (or 488391 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 1966940876 is about 44350.2071697529. The cubic root of 1966940876 is about 1252.9404643915.

The spelling of 1966940876 in words is "one billion, nine hundred sixty-six million, nine hundred forty thousand, eight hundred seventy-six".