1681195230 has 128 divisors (see below), whose sum is σ = 5267082240. Its totient is φ = 376202880.

The previous prime is 1681195223. The next prime is 1681195231. The reversal of 1681195230 is 325911861.

1681195230 is a `hidden beast` number, since 16 + 8 + 119 + 523 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681195231) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 16839 + ... + 60381.

It is an arithmetic number, because the mean of its divisors is an integer number (41149080).

Almost surely, 2^1681195230 is an apocalyptic number.

1681195230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1681195230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2633541120).

1681195230 is an abundant number, since it is smaller than the sum of its proper divisors (3585887010).

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

1681195230 is a wasteful number, since it uses less digits than its factorization.

1681195230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43583 (or 43577 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1681195230 is about 41002.3807845349. The cubic root of 1681195230 is about 1189.0662425253.

The spelling of 1681195230 in words is "one billion, six hundred eighty-one million, one hundred ninety-five thousand, two hundred thirty".