1681105230 has 144 divisors (see below), whose sum is σ = 5135236704. Its totient is φ = 380419200.

The previous prime is 1681105219. The next prime is 1681105243. The reversal of 1681105230 is 325011861.

It is a super-2 number, since 2×1681105230² = 5652229588666705800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1681105194 and 1681105203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 452380 + ... + 456080.

It is an arithmetic number, because the mean of its divisors is an integer number (35661366).

Almost surely, 2^1681105230 is an apocalyptic number.

1681105230 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 1681105230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2567618352).

1681105230 is an abundant number, since it is smaller than the sum of its proper divisors (3454131474).

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

1681105230 is a wasteful number, since it uses less digits than its factorization.

1681105230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831 (or 3821 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1681105230 is about 41001.2832726001. The cubic root of 1681105230 is about 1189.0450239166.

The spelling of 1681105230 in words is "one billion, six hundred eighty-one million, one hundred five thousand, two hundred thirty".