1680598368 has 60 divisors (see below), whose sum is σ = 4942600740. Its totient is φ = 560198592.

The previous prime is 1680598327. The next prime is 1680598379. The reversal of 1680598368 is 8638950861.

1680598368 is a `hidden beast` number, since 16 + 8 + 0 + 598 + 36 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 321598 + ... + 326781.

It is an arithmetic number, because the mean of its divisors is an integer number (82376679).

Almost surely, 2^1680598368 is an apocalyptic number.

1680598368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1680598368 is an abundant number, since it is smaller than the sum of its proper divisors (3262002372).

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

1680598368 is an equidigital number, since it uses as much as digits as its factorization.

1680598368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648401 (or 648384 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 1680598368 is about 40995.1017561855. The cubic root of 1680598368 is about 1188.9255108112.

The spelling of 1680598368 in words is "one billion, six hundred eighty million, five hundred ninety-eight thousand, three hundred sixty-eight".