1670144 has 44 divisors (see below), whose sum is σ = 3831984. Its totient is φ = 712704.

The previous prime is 1670129. The next prime is 1670161. The reversal of 1670144 is 4410761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7052 + ... + 7284.

2^1670144 is an apocalyptic number.

1670144 is a gapful number since it is divisible by the number (14) 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 1670144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915992).

1670144 is an abundant number, since it is smaller than the sum of its proper divisors (2161840).

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

1670144 is an equidigital number, since it uses as much as digits as its factorization.

1670144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1670144 is about 1292.3405124038. The cubic root of 1670144 is about 118.6455095612.

The spelling of 1670144 in words is "one million, six hundred seventy thousand, one hundred forty-four".