1694144 has 28 divisors (see below), whose sum is σ = 3407664. Its totient is φ = 835584.

The previous prime is 1694141. The next prime is 1694159. The reversal of 1694144 is 4414961.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1694141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6464 + ... + 6720.

2^1694144 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 1694144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1703832).

1694144 is an abundant number, since it is smaller than the sum of its proper divisors (1713520).

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

1694144 is a wasteful number, since it uses less digits than its factorization.

1694144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 362 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 1694144 is about 1301.5928702939. The cubic root of 1694144 is about 119.2111215844.

It can be divided in two parts, 169 and 4144, that multiplied together give a triangular number (700336 = T₁₁₈₃).

The spelling of 1694144 in words is "one million, six hundred ninety-four thousand, one hundred forty-four".