1440134013 has 8 divisors (see below), whose sum is σ = 2021240800. Its totient is φ = 909558288.

The previous prime is 1440133993. The next prime is 1440134023. The reversal of 1440134013 is 3104310441.

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

It is not a de Polignac number, because 1440134013 - 2⁹ = 1440133501 is a prime.

It is a super-3 number, since 3×1440134013³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440134023) 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, 12632698 + ... + 12632811.

It is an arithmetic number, because the mean of its divisors is an integer number (252655100).

Almost surely, 2^1440134013 is an apocalyptic number.

It is an amenable number.

1440134013 is a deficient number, since it is larger than the sum of its proper divisors (581106787).

1440134013 is a wasteful number, since it uses less digits than its factorization.

1440134013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25265531.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1440134013 is about 37949.0976572566. The cubic root of 1440134013 is about 1129.2782644210.

Adding to 1440134013 its reverse (3104310441), we get a palindrome (4544444454).

The spelling of 1440134013 in words is "one billion, four hundred forty million, one hundred thirty-four thousand, thirteen".