1662080 has 96 divisors (see below), whose sum is σ = 4709340. Its totient is φ = 559104.

The previous prime is 1662041. The next prime is 1662083. The reversal of 1662080 is 802661.

It can be written as a sum of positive squares in 2 ways, for example, as 1658944 + 3136 = 1288^2 + 56^2 .

It is not an unprimeable number, because it can be changed into a prime (1662083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31334 + ... + 31386.

2^1662080 is an apocalyptic number.

1662080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354670).

1662080 is an abundant number, since it is smaller than the sum of its proper divisors (3047260).

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

1662080 is an equidigital number, since it uses as much as digits as its factorization.

1662080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1662080 is about 1289.2168165208. The cubic root of 1662080 is about 118.4542483329.

The spelling of 1662080 in words is "one million, six hundred sixty-two thousand, eighty".