1031680 has 80 divisors (see below), whose sum is σ = 2749824. Its totient is φ = 368640.

The previous prime is 1031677. The next prime is 1031707. The reversal of 1031680 is 861301.

1031680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33265 + ... + 33295.

2^1031680 is an apocalyptic number.

1031680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374912).

1031680 is an abundant number, since it is smaller than the sum of its proper divisors (1718144).

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

1031680 is an equidigital number, since it uses as much as digits as its factorization.

1031680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1031680 is about 1015.7164958786. The cubic root of 1031680 is about 101.0450408528.

Adding to 1031680 its reverse (861301), we get a palindrome (1892981).

It can be divided in two parts, 1031 and 680, that added together give a triangular number (1711 = T₅₈).

The spelling of 1031680 in words is "one million, thirty-one thousand, six hundred eighty".