1744428 has 48 divisors (see below), whose sum is σ = 4901120. Its totient is φ = 471744.

The previous prime is 1744423. The next prime is 1744429. The reversal of 1744428 is 8244471.

It is a junction number, because it is equal to n+sod(n) for n = 1744395 and 1744404.

It is not an unprimeable number, because it can be changed into a prime (1744423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1050 + ... + 2142.

2^1744428 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 1744428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2450560).

1744428 is an abundant number, since it is smaller than the sum of its proper divisors (3156692).

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

1744428 is a wasteful number, since it uses less digits than its factorization.

1744428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1124 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 1744428 is about 1320.7679584242. The cubic root of 1744428 is about 120.3790790093.

Adding to 1744428 its reverse (8244471), we get a palindrome (9988899).

The spelling of 1744428 in words is "one million, seven hundred forty-four thousand, four hundred twenty-eight".