1140624 has 45 divisors (see below), whose sum is σ = 3228433.
Its totient is φ = 375936.
The previous prime is 1140619. The next prime is 1140637. The reversal of 1140624 is 4260411.
The square root of 1140624 is 1068.
It is a perfect power (a square), and thus also a powerful number.
1140624 is a `hidden beast` number, since 1 + 1 + 40 + 624 = 666.
It can be written as a sum of positive squares in only one way, i.e., 219024 + 921600 = 468^2 + 960^2
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1140597 and 1140606.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12772 + ... + 12860.
21140624 is an apocalyptic number.
1140624 is the 1068-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1140624
1140624 is an abundant number, since it is smaller than the sum of its proper divisors (2087809).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1140624 is an equidigital number, since it uses as much as digits as its factorization.
1140624 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 192 (or 94 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The cubic root of 1140624 is about 104.4834493755.
It can be divided in two parts, 1140 and 624, that added together give a square (1764 = 422).
The spelling of 1140624 in words is "one million, one hundred forty thousand, six hundred twenty-four".