1320870 has 16 divisors (see below), whose sum is σ = 3170160. Its totient is φ = 352224.

The previous prime is 1320859. The next prime is 1320871. The reversal of 1320870 is 780231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21985 + ... + 22044.

It is an arithmetic number, because the mean of its divisors is an integer number (198135).

2^1320870 is an apocalyptic number.

1320870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320870 is an abundant number, since it is smaller than the sum of its proper divisors (1849290).

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

1320870 is a wasteful number, since it uses less digits than its factorization.

1320870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44039.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1320870 is about 1149.2910858438. The cubic root of 1320870 is about 109.7202256635.

The spelling of 1320870 in words is "one million, three hundred twenty thousand, eight hundred seventy".