1140544 has 28 divisors (see below), whose sum is σ = 2304288. Its totient is φ = 560000.

The previous prime is 1140539. The next prime is 1140563. The reversal of 1140544 is 4450411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4419 + ... + 4669.

It is an arithmetic number, because the mean of its divisors is an integer number (82296).

2^1140544 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 1140544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152144).

1140544 is an abundant number, since it is smaller than the sum of its proper divisors (1163744).

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

1140544 is an equidigital number, since it uses as much as digits as its factorization.

1140544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1140544 is about 1067.9625461597. The cubic root of 1140544 is about 104.4810065982.

Adding to 1140544 its reverse (4450411), we get a palindrome (5590955).

It can be divided in two parts, 11405 and 44, that added together give a square (11449 = 107²).

The spelling of 1140544 in words is "one million, one hundred forty thousand, five hundred forty-four".