1689054276 has 144 divisors (see below), whose sum is σ = 4992497664. Its totient is φ = 434947968.

The previous prime is 1689054247. The next prime is 1689054293. The reversal of 1689054276 is 6724509861.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 609045 + ... + 611811.

Almost surely, 2^1689054276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689054276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2496248832).

1689054276 is an abundant number, since it is smaller than the sum of its proper divisors (3303443388).

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

1689054276 is a wasteful number, since it uses less digits than its factorization.

1689054276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 1689054276 is about 41098.1055037820. The cubic root of 1689054276 is about 1190.9161967173.

The spelling of 1689054276 in words is "one billion, six hundred eighty-nine million, fifty-four thousand, two hundred seventy-six".