1681096830 has 64 divisors (see below), whose sum is σ = 4759769088. Its totient is φ = 371854080.

The previous prime is 1681096829. The next prime is 1681096871. The reversal of 1681096830 is 386901861.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122607 + ... + 135626.

It is an arithmetic number, because the mean of its divisors is an integer number (74371392).

Almost surely, 2^1681096830 is an apocalyptic number.

1681096830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1681096830 is an abundant number, since it is smaller than the sum of its proper divisors (3078672258).

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

1681096830 is a wasteful number, since it uses less digits than its factorization.

1681096830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258281.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1681096830 is about 41001.1808366540. The cubic root of 1681096830 is about 1189.0430434744.

The spelling of 1681096830 in words is "one billion, six hundred eighty-one million, ninety-six thousand, eight hundred thirty".