1688830052 has 24 divisors (see below), whose sum is σ = 3637480896. Its totient is φ = 668108448.

The previous prime is 1688830021. The next prime is 1688830061. The reversal of 1688830052 is 2500388861.

It is a junction number, because it is equal to n+sod(n) for n = 1688829991 and 1688830009.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2319458 + ... + 2320185.

It is an arithmetic number, because the mean of its divisors is an integer number (151561704).

Almost surely, 2^1688830052 is an apocalyptic number.

It is an amenable number.

1688830052 is an abundant number, since it is smaller than the sum of its proper divisors (1948650844).

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

1688830052 is a wasteful number, since it uses less digits than its factorization.

1688830052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639667 (or 4639665 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1688830052 is about 41095.3775016120. The cubic root of 1688830052 is about 1190.8634958629.

The spelling of 1688830052 in words is "one billion, six hundred eighty-eight million, eight hundred thirty thousand, fifty-two".