1440055142 has 16 divisors (see below), whose sum is σ = 2298650400. Its totient is φ = 674264448.

The previous prime is 1440055129. The next prime is 1440055147. The reversal of 1440055142 is 2415500441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440055147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99653 + ... + 113184.

It is an arithmetic number, because the mean of its divisors is an integer number (143665650).

Almost surely, 2^1440055142 is an apocalyptic number.

1440055142 is a deficient number, since it is larger than the sum of its proper divisors (858595258).

1440055142 is a wasteful number, since it uses less digits than its factorization.

1440055142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213055.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1440055142 is about 37948.0584747099. The cubic root of 1440055142 is about 1129.2576485312.

Adding to 1440055142 its reverse (2415500441), we get a palindrome (3855555583).

The spelling of 1440055142 in words is "one billion, four hundred forty million, fifty-five thousand, one hundred forty-two".