1040440324 has 72 divisors (see below), whose sum is σ = 2446591392. Its totient is φ = 381507840.

The previous prime is 1040440301. The next prime is 1040440343. The reversal of 1040440324 is 4230440401.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1040440295 and 1040440304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22459 + ... + 50845.

It is an arithmetic number, because the mean of its divisors is an integer number (33980436).

Almost surely, 2^1040440324 is an apocalyptic number.

1040440324 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 1040440324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223295696).

1040440324 is an abundant number, since it is smaller than the sum of its proper divisors (1406151068).

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

1040440324 is a wasteful number, since it uses less digits than its factorization.

1040440324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28433 (or 28424 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1040440324 is about 32255.8572045450. The cubic root of 1040440324 is about 1013.3023703124.

Adding to 1040440324 its reverse (4230440401), we get a palindrome (5270880725).

The spelling of 1040440324 in words is "one billion, forty million, four hundred forty thousand, three hundred twenty-four".