1040440430324 has 6 divisors (see below), whose sum is σ = 1820770753074. Its totient is φ = 520220215160.

The previous prime is 1040440430321. The next prime is 1040440430363. The reversal of 1040440430324 is 4230340440401.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1037509290724 + 2931139600 = 1018582^2 + 54140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040440430321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130055053787 + ... + 130055053794.

It is an arithmetic number, because the mean of its divisors is an integer number (303461792179).

Almost surely, 2^{1040440430324} is an apocalyptic number.

It is an amenable number.

1040440430324 is a deficient number, since it is larger than the sum of its proper divisors (780330322750).

1040440430324 is a wasteful number, since it uses less digits than its factorization.

1040440430324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260110107585 (or 260110107583 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 1040440430324 its reverse (4230340440401), we get a palindrome (5270780870725).

The spelling of 1040440430324 in words is "one trillion, forty billion, four hundred forty million, four hundred thirty thousand, three hundred twenty-four".