1320684 has 24 divisors (see below), whose sum is σ = 3105648. Its totient is φ = 436800.

The previous prime is 1320667. The next prime is 1320721. The reversal of 1320684 is 4860231.

It is a happy 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, 1534 + ... + 2234.

It is an arithmetic number, because the mean of its divisors is an integer number (129402).

2^1320684 is an apocalyptic number.

It is an amenable number.

1320684 is an abundant number, since it is smaller than the sum of its proper divisors (1784964).

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

1320684 is a wasteful number, since it uses less digits than its factorization.

1320684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1320684 is about 1149.2101635471. The cubic root of 1320684 is about 109.7150752904.

The spelling of 1320684 in words is "one million, three hundred twenty thousand, six hundred eighty-four".