1684332 has 72 divisors (see below), whose sum is σ = 4739280. Its totient is φ = 501120.

The previous prime is 1684327. The next prime is 1684337. The reversal of 1684332 is 2334861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1684327) and next prime (1684337).

It is a junction number, because it is equal to n+sod(n) for n = 1684296 and 1684305.

It is not an unprimeable number, because it can be changed into a prime (1684337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27582 + ... + 27642.

2^1684332 is an apocalyptic number.

1684332 is a gapful number since it is divisible by the number (12) 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 1684332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2369640).

1684332 is an abundant number, since it is smaller than the sum of its proper divisors (3054948).

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

1684332 is a wasteful number, since it uses less digits than its factorization.

1684332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 138 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1684332 is about 1297.8181690822. The cubic root of 1684332 is about 118.9805302045.

It can be divided in two parts, 1684 and 332, that added together give a triangular number (2016 = T₆₃).

The spelling of 1684332 in words is "one million, six hundred eighty-four thousand, three hundred thirty-two".