1986368084 has 12 divisors (see below), whose sum is σ = 3482070144. Its totient is φ = 991490904.

The previous prime is 1986368057. The next prime is 1986368089. The reversal of 1986368084 is 4808636891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1986368089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420644 + ... + 425339.

It is an arithmetic number, because the mean of its divisors is an integer number (290172512).

Almost surely, 2^1986368084 is an apocalyptic number.

It is an amenable number.

1986368084 is a deficient number, since it is larger than the sum of its proper divisors (1495702060).

1986368084 is a wasteful number, since it uses less digits than its factorization.

1986368084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846574 (or 846572 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 53.

The square root of 1986368084 is about 44568.6895028337. The cubic root of 1986368084 is about 1257.0519985569.

The spelling of 1986368084 in words is "one billion, nine hundred eighty-six million, three hundred sixty-eight thousand, eighty-four".