1689673260 has 96 divisors (see below), whose sum is σ = 5169330432. Its totient is φ = 408971520.

The previous prime is 1689673253. The next prime is 1689673283. The reversal of 1689673260 is 623769861.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517794 + ... + 521046.

It is an arithmetic number, because the mean of its divisors is an integer number (53847192).

Almost surely, 2^1689673260 is an apocalyptic number.

1689673260 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 1689673260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2584665216).

1689673260 is an abundant number, since it is smaller than the sum of its proper divisors (3479657172).

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

1689673260 is a wasteful number, since it uses less digits than its factorization.

1689673260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063 (or 4061 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 1689673260 is about 41105.6353800790. The cubic root of 1689673260 is about 1191.0616564285.

The spelling of 1689673260 in words is "one billion, six hundred eighty-nine million, six hundred seventy-three thousand, two hundred sixty".