1667360 has 48 divisors (see below), whose sum is σ = 4177656. Its totient is φ = 626688.

The previous prime is 1667359. The next prime is 1667363. The reversal of 1667360 is 637661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1008016 + 659344 = 1004^2 + 812^2 .

It is not an unprimeable number, because it can be changed into a prime (1667363) 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, 2414 + ... + 3026.

2^1667360 is an apocalyptic number.

1667360 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 1667360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2088828).

1667360 is an abundant number, since it is smaller than the sum of its proper divisors (2510296).

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

1667360 is a wasteful number, since it uses less digits than its factorization.

1667360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 1667360 is about 1291.2629476602. The cubic root of 1667360 is about 118.5795486217.

It can be divided in two parts, 16 and 67360, that added together give a palindrome (67376).

The spelling of 1667360 in words is "one million, six hundred sixty-seven thousand, three hundred sixty".