1440324452 has 12 divisors (see below), whose sum is σ = 2880648960. Its totient is φ = 617281896.

The previous prime is 1440324427. The next prime is 1440324463. The reversal of 1440324452 is 2544230441.

1440324452 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25720052 + ... + 25720107.

It is an arithmetic number, because the mean of its divisors is an integer number (240054080).

Almost surely, 2^1440324452 is an apocalyptic number.

It is an amenable number.

1440324452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1440324452 is a wasteful number, since it uses less digits than its factorization.

1440324452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51440170 (or 51440168 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 1440324452 is about 37951.6067117059. The cubic root of 1440324452 is about 1129.3280396832.

Adding to 1440324452 its reverse (2544230441), we get a palindrome (3984554893).

The spelling of 1440324452 in words is "one billion, four hundred forty million, three hundred twenty-four thousand, four hundred fifty-two".