1608487680 has 144 divisors (see below), whose sum is σ = 5276414304. Its totient is φ = 417300480.

The previous prime is 1608487679. The next prime is 1608487757. The reversal of 1608487680 is 867848061.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136420 + ... + 147740.

It is an arithmetic number, because the mean of its divisors is an integer number (36641766).

Almost surely, 2^1608487680 is an apocalyptic number.

1608487680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1608487680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2638207152).

1608487680 is an abundant number, since it is smaller than the sum of its proper divisors (3667926624).

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

1608487680 is a wasteful number, since it uses less digits than its factorization.

1608487680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11382 (or 11368 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 1608487680 is about 40105.9556674567. The cubic root of 1608487680 is about 1171.6716261758.

The spelling of 1608487680 in words is "one billion, six hundred eight million, four hundred eighty-seven thousand, six hundred eighty".