1681763232 has 24 divisors (see below), whose sum is σ = 4414628736. Its totient is φ = 560587712.

The previous prime is 1681763203. The next prime is 1681763263. The reversal of 1681763232 is 2323671861.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8759088 + ... + 8759279.

It is an arithmetic number, because the mean of its divisors is an integer number (183942864).

Almost surely, 2^1681763232 is an apocalyptic number.

1681763232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1681763232 is an abundant number, since it is smaller than the sum of its proper divisors (2732865504).

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

1681763232 is a wasteful number, since it uses less digits than its factorization.

1681763232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17518380 (or 17518372 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 1681763232 is about 41009.3066510518. The cubic root of 1681763232 is about 1189.2001385267.

The spelling of 1681763232 in words is "one billion, six hundred eighty-one million, seven hundred sixty-three thousand, two hundred thirty-two".