1440425134 has 4 divisors (see below), whose sum is σ = 2160637704. Its totient is φ = 720212566.

The previous prime is 1440425069. The next prime is 1440425153. The reversal of 1440425134 is 4315240441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4315240441 = 17 ⋅253837673.

It is a congruent 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 as a sum of consecutive naturals, namely, 360106282 + ... + 360106285.

It is an arithmetic number, because the mean of its divisors is an integer number (540159426).

Almost surely, 2^1440425134 is an apocalyptic number.

1440425134 is a deficient number, since it is larger than the sum of its proper divisors (720212570).

1440425134 is an equidigital number, since it uses as much as digits as its factorization.

1440425134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720212569.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1440425134 is about 37952.9331409313. The cubic root of 1440425134 is about 1129.3543532813.

Adding to 1440425134 its reverse (4315240441), we get a palindrome (5755665575).

The spelling of 1440425134 in words is "one billion, four hundred forty million, four hundred twenty-five thousand, one hundred thirty-four".