1684281344 has 48 divisors (see below), whose sum is σ = 3375623160. Its totient is φ = 840171520.

The previous prime is 1684281337. The next prime is 1684281349. The reversal of 1684281344 is 4431824861.

It is a super-3 number, since 3×1684281344³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684281349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312127 + ... + 1313409.

Almost surely, 2^1684281344 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 1684281344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687811580).

1684281344 is an abundant number, since it is smaller than the sum of its proper divisors (1691341816).

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

1684281344 is an equidigital number, since it uses as much as digits as its factorization.

1684281344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946 (or 1926 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The square root of 1684281344 is about 41039.9968810915. The cubic root of 1684281344 is about 1189.7933741945.

The spelling of 1684281344 in words is "one billion, six hundred eighty-four million, two hundred eighty-one thousand, three hundred forty-four".