1440324031442 has 12 divisors (see below), whose sum is σ = 2295049192890. Its totient is φ = 677799543936.

The previous prime is 1440324031427. The next prime is 1440324031453. The reversal of 1440324031442 is 2441304230441.

It can be written as a sum of positive squares in 3 ways, for example, as 1377874521241 + 62449510201 = 1173829^2 + 249899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1440324031399 and 1440324031408.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1245954467 + ... + 1245955622.

Almost surely, 2^{1440324031442} is an apocalyptic number.

1440324031442 is a deficient number, since it is larger than the sum of its proper divisors (854725161448).

1440324031442 is a wasteful number, since it uses less digits than its factorization.

1440324031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491910125 (or 2491910108 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1440324031442 its reverse (2441304230441), we get a palindrome (3881628261883).

The spelling of 1440324031442 in words is "one trillion, four hundred forty billion, three hundred twenty-four million, thirty-one thousand, four hundred forty-two".