1044240540 has 48 divisors (see below), whose sum is σ = 3341571072. Its totient is φ = 238683456.

The previous prime is 1044240511. The next prime is 1044240541. The reversal of 1044240540 is 450424401.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1044240540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044240541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242724 + ... + 1243563.

It is an arithmetic number, because the mean of its divisors is an integer number (69616064).

Almost surely, 2^1044240540 is an apocalyptic number.

1044240540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044240540 is an abundant number, since it is smaller than the sum of its proper divisors (2297330532).

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

1044240540 is a wasteful number, since it uses less digits than its factorization.

1044240540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486306 (or 2486304 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1044240540 is about 32314.7108914810. The cubic root of 1044240540 is about 1014.5345694633.

Adding to 1044240540 its reverse (450424401), we get a palindrome (1494664941).

The spelling of 1044240540 in words is "one billion, forty-four million, two hundred forty thousand, five hundred forty".