1689302142 has 160 divisors (see below), whose sum is σ = 4328644320. Its totient is φ = 487710720.

The previous prime is 1689302051. The next prime is 1689302161. The reversal of 1689302142 is 2412039861.

1689302142 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1689302097 and 1689302106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5012598 + ... + 5012934.

It is an arithmetic number, because the mean of its divisors is an integer number (27054027).

Almost surely, 2^1689302142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689302142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2164322160).

1689302142 is an abundant number, since it is smaller than the sum of its proper divisors (2639342178).

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

1689302142 is a wasteful number, since it uses less digits than its factorization.

1689302142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1689302142 is about 41101.1209336193. The cubic root of 1689302142 is about 1190.9744488805.

The spelling of 1689302142 in words is "one billion, six hundred eighty-nine million, three hundred two thousand, one hundred forty-two".