1440342042 has 16 divisors (see below), whose sum is σ = 2885807520. Its totient is φ = 479260112.

The previous prime is 1440341989. The next prime is 1440342053. The reversal of 1440342042 is 2402430441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209817 + ... + 216572.

It is an arithmetic number, because the mean of its divisors is an integer number (180362970).

Almost surely, 2^1440342042 is an apocalyptic number.

1440342042 is an abundant number, since it is smaller than the sum of its proper divisors (1445465478).

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

1440342042 is a wasteful number, since it uses less digits than its factorization.

1440342042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426957.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1440342042 is about 37951.8384534926. The cubic root of 1440342042 is about 1129.3326369806.

Adding to 1440342042 its reverse (2402430441), we get a palindrome (3842772483).

The spelling of 1440342042 in words is "one billion, four hundred forty million, three hundred forty-two thousand, forty-two".