1946686860 has 36 divisors (see below), whose sum is σ = 5904950688. Its totient is φ = 519116448.

The previous prime is 1946686853. The next prime is 1946686867. The reversal of 1946686860 is 686866491.

It is an interprime number because it is at equal distance from previous prime (1946686853) and next prime (1946686867).

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1946686797 and 1946686806.

It is not an unprimeable number, because it can be changed into a prime (1946686867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5407284 + ... + 5407643.

It is an arithmetic number, because the mean of its divisors is an integer number (164026408).

Almost surely, 2^1946686860 is an apocalyptic number.

1946686860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1946686860 is an abundant number, since it is smaller than the sum of its proper divisors (3958263828).

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

1946686860 is a wasteful number, since it uses less digits than its factorization.

1946686860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10814942 (or 10814937 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 1946686860 is about 44121.2744602873. The cubic root of 1946686860 is about 1248.6250182280.

The spelling of 1946686860 in words is "one billion, nine hundred forty-six million, six hundred eighty-six thousand, eight hundred sixty".