1686413334 has 16 divisors (see below), whose sum is σ = 3385654272. Its totient is φ = 559999848.

The previous prime is 1686413329. The next prime is 1686413347. The reversal of 1686413334 is 4333146861.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1686413292 and 1686413301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532774 + ... + 535929.

It is an arithmetic number, because the mean of its divisors is an integer number (211603392).

Almost surely, 2^1686413334 is an apocalyptic number.

1686413334 is an abundant number, since it is smaller than the sum of its proper divisors (1699240938).

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

1686413334 is a wasteful number, since it uses less digits than its factorization.

1686413334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068971.

The product of its digits is 124416, while the sum is 39.

The square root of 1686413334 is about 41065.9632055550. The cubic root of 1686413334 is about 1190.2951822873.

The spelling of 1686413334 in words is "one billion, six hundred eighty-six million, four hundred thirteen thousand, three hundred thirty-four".