1680048 has 40 divisors (see below), whose sum is σ = 4823600. Its totient is φ = 559872.

The previous prime is 1680023. The next prime is 1680071. The reversal of 1680048 is 8400861.

It is a super-2 number, since 2×1680048² = 5645122564608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1513 + ... + 2376.

It is an arithmetic number, because the mean of its divisors is an integer number (120590).

2^1680048 is an apocalyptic number.

1680048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1680048 is an abundant number, since it is smaller than the sum of its proper divisors (3143552).

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

1680048 is a wasteful number, since it uses less digits than its factorization.

1680048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906 (or 3894 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1680048 is about 1296.1666559513. The cubic root of 1680048 is about 118.8795712201.

The spelling of 1680048 in words is "one million, six hundred eighty thousand, forty-eight".