1641383460 has 96 divisors (see below), whose sum is σ = 5135356800. Its totient is φ = 435231360.

The previous prime is 1641383459. The next prime is 1641383501. The reversal of 1641383460 is 643831461.

It is a happy number.

1641383460 is a `hidden beast` number, since 1 + 64 + 138 + 3 + 460 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88170 + ... + 105150.

It is an arithmetic number, because the mean of its divisors is an integer number (53493300).

Almost surely, 2^1641383460 is an apocalyptic number.

1641383460 is a gapful number since it is divisible by the number (10) 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 1641383460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2567678400).

1641383460 is an abundant number, since it is smaller than the sum of its proper divisors (3493973340).

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

1641383460 is a wasteful number, since it uses less digits than its factorization.

1641383460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17178 (or 17170 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1641383460 is about 40513.9909167191. The cubic root of 1641383460 is about 1179.6052160148.

The spelling of 1641383460 in words is "one billion, six hundred forty-one million, three hundred eighty-three thousand, four hundred sixty".