1031673680 has 20 divisors (see below), whose sum is σ = 2398641492. Its totient is φ = 412669440.

The previous prime is 1031673661. The next prime is 1031673683. The reversal of 1031673680 is 863761301.

It can be written as a sum of positive squares in 2 ways, for example, as 640899856 + 390773824 = 25316^2 + 19768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 1031673680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031673683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6447881 + ... + 6448040.

Almost surely, 2^1031673680 is an apocalyptic number.

1031673680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031673680 is an abundant number, since it is smaller than the sum of its proper divisors (1366967812).

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

1031673680 is a wasteful number, since it uses less digits than its factorization.

1031673680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12895934 (or 12895928 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1031673680 is about 32119.6774579073. The cubic root of 1031673680 is about 1010.4483452077.

The spelling of 1031673680 in words is "one billion, thirty-one million, six hundred seventy-three thousand, six hundred eighty".