1608806860 has 12 divisors (see below), whose sum is σ = 3378494448. Its totient is φ = 643522736.

The previous prime is 1608806767. The next prime is 1608806861. The reversal of 1608806860 is 686088061.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1608806861) 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, 40220152 + ... + 40220191.

It is an arithmetic number, because the mean of its divisors is an integer number (281541204).

Almost surely, 2^1608806860 is an apocalyptic number.

1608806860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1608806860 is an abundant number, since it is smaller than the sum of its proper divisors (1769687588).

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

1608806860 is a wasteful number, since it uses less digits than its factorization.

1608806860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80440352 (or 80440350 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1608806860 is about 40109.9346795778. The cubic root of 1608806860 is about 1171.7491212085.

The spelling of 1608806860 in words is "one billion, six hundred eight million, eight hundred six thousand, eight hundred sixty".