1606877988 has 48 divisors (see below), whose sum is σ = 3779052480. Its totient is φ = 531402624.

The previous prime is 1606877929. The next prime is 1606878019. The reversal of 1606877988 is 8897786061.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1831806 + ... + 1832682.

It is an arithmetic number, because the mean of its divisors is an integer number (78730260).

Almost surely, 2^1606877988 is an apocalyptic number.

It is an amenable number.

1606877988 is an abundant number, since it is smaller than the sum of its proper divisors (2172174492).

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

1606877988 is a wasteful number, since it uses less digits than its factorization.

1606877988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 60.

The square root of 1606877988 is about 40085.8826521258. The cubic root of 1606877988 is about 1171.2806460926.

The spelling of 1606877988 in words is "one billion, six hundred six million, eight hundred seventy-seven thousand, nine hundred eighty-eight".