2031694160 has 40 divisors (see below), whose sum is σ = 4732096680. Its totient is φ = 811231232.

The previous prime is 2031694153. The next prime is 2031694177. The reversal of 2031694160 is 614961302.

It can be written as a sum of positive squares in 4 ways, for example, as 245110336 + 1786583824 = 15656^2 + 42268^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23204 + ... + 67836.

It is an arithmetic number, because the mean of its divisors is an integer number (118302417).

Almost surely, 2^2031694160 is an apocalyptic number.

2031694160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031694160 is an abundant number, since it is smaller than the sum of its proper divisors (2700402520).

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

2031694160 is a wasteful number, since it uses less digits than its factorization.

2031694160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45215 (or 45209 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2031694160 is about 45074.3181867458. The cubic root of 2031694160 is about 1266.5415567414.

The spelling of 2031694160 in words is "two billion, thirty-one million, six hundred ninety-four thousand, one hundred sixty".