1641083860 has 48 divisors (see below), whose sum is σ = 3725229312. Its totient is φ = 603676800.

The previous prime is 1641083839. The next prime is 1641083861. The reversal of 1641083860 is 683801461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641083861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58815 + ... + 82105.

It is an arithmetic number, because the mean of its divisors is an integer number (77608944).

Almost surely, 2^1641083860 is an apocalyptic number.

1641083860 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 1641083860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862614656).

1641083860 is an abundant number, since it is smaller than the sum of its proper divisors (2084145452).

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

1641083860 is a wasteful number, since it uses less digits than its factorization.

1641083860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23584 (or 23582 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1641083860 is about 40510.2932598617. The cubic root of 1641083860 is about 1179.5334409470.

The spelling of 1641083860 in words is "one billion, six hundred forty-one million, eighty-three thousand, eight hundred sixty".