1440242135 has 8 divisors (see below), whose sum is σ = 1735016976. Its totient is φ = 1147709440.

The previous prime is 1440242119. The next prime is 1440242183. The reversal of 1440242135 is 5312420441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1440242135 - 2⁴ = 1440242119 is a prime.

It is a Duffinian number.

It is a congruent 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, 559121 + ... + 561690.

It is an arithmetic number, because the mean of its divisors is an integer number (216877122).

Almost surely, 2^1440242135 is an apocalyptic number.

1440242135 is a deficient number, since it is larger than the sum of its proper divisors (294774841).

1440242135 is a wasteful number, since it uses less digits than its factorization.

1440242135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121073.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1440242135 is about 37950.5221966708. The cubic root of 1440242135 is about 1129.3065249319.

Adding to 1440242135 its reverse (5312420441), we get a palindrome (6752662576).

The spelling of 1440242135 in words is "one billion, four hundred forty million, two hundred forty-two thousand, one hundred thirty-five".