1680064 has 14 divisors (see below), whose sum is σ = 3334004. Its totient is φ = 840000.

The previous prime is 1680023. The next prime is 1680071. The reversal of 1680064 is 4600861.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13062 + ... + 13189.

2^1680064 is an apocalyptic number.

It is an amenable number.

1680064 is a deficient number, since it is larger than the sum of its proper divisors (1653940).

1680064 is an equidigital number, since it uses as much as digits as its factorization.

1680064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26263 (or 26253 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1680064 is about 1296.1728279824. The cubic root of 1680064 is about 118.8799486036.

The spelling of 1680064 in words is "one million, six hundred eighty thousand, sixty-four".