1894144 has 54 divisors (see below), whose sum is σ = 4427304. Its totient is φ = 806400.

The previous prime is 1894127. The next prime is 1894163. The reversal of 1894144 is 4414981.

It is a super-3 number, since 3×1894144³ = 20387324363330813952, which contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12469 + ... + 12619.

2^1894144 is an apocalyptic number.

1894144 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 1894144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2213652).

1894144 is an abundant number, since it is smaller than the sum of its proper divisors (2533160).

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

1894144 is an equidigital number, since it uses as much as digits as its factorization.

1894144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 160 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 1894144 is about 1376.2790414738. The cubic root of 1894144 is about 123.7288560277.

The spelling of 1894144 in words is "one million, eight hundred ninety-four thousand, one hundred forty-four".