1040424 has 64 divisors (see below), whose sum is σ = 3248640. Its totient is φ = 269760.
The previous prime is 1040419. The next prime is 1040447. The reversal of 1040424 is 4240401.
It is an Ulam number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1567 + ... + 2129.
It is an arithmetic number, because the mean of its divisors is an integer number (50760).
21040424 is an apocalyptic number.
1040424 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 1040424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624320).
1040424 is an abundant number, since it is smaller than the sum of its proper divisors (2208216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1040424 is a wasteful number, since it uses less digits than its factorization.
1040424 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 590 (or 586 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 1040424 is about 1020.0117646380. The cubic root of 1040424 is about 101.3297070878.
Adding to 1040424 its reverse (4240401), we get a palindrome (5280825).
The spelling of 1040424 in words is "one million, forty thousand, four hundred twenty-four".
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