1860144 has 80 divisors (see below), whose sum is σ = 5666304. Its totient is φ = 518400.

The previous prime is 1860143. The next prime is 1860163. The reversal of 1860144 is 4410681.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (1860143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6729 + ... + 6999.

2^1860144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1860144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2833152).

1860144 is an abundant number, since it is smaller than the sum of its proper divisors (3806160).

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

1860144 is a wasteful number, since it uses less digits than its factorization.

1860144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1860144 is about 1363.8709616382. The cubic root of 1860144 is about 122.9840682650.

The spelling of 1860144 in words is "one million, eight hundred sixty thousand, one hundred forty-four".