1371680 has 24 divisors (see below), whose sum is σ = 3240972. Its totient is φ = 548608.

The previous prime is 1371661. The next prime is 1371683. The reversal of 1371680 is 861731.

It can be written as a sum of positive squares in 2 ways, for example, as 1336336 + 35344 = 1156^2 + 188^2 .

It is not an unprimeable number, because it can be changed into a prime (1371683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4127 + ... + 4446.

2^1371680 is an apocalyptic number.

1371680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1371680 is an abundant number, since it is smaller than the sum of its proper divisors (1869292).

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

1371680 is an equidigital number, since it uses as much as digits as its factorization.

1371680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8588 (or 8580 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1371680 is about 1171.1874316266. The cubic root of 1371680 is about 111.1094340488.

The spelling of 1371680 in words is "one million, three hundred seventy-one thousand, six hundred eighty".