1440412131 has 16 divisors (see below), whose sum is σ = 1931719680. Its totient is φ = 954703680.

The previous prime is 1440412121. The next prime is 1440412133. The reversal of 1440412131 is 1312140441.

It is not a de Polignac number, because 1440412131 - 2⁶ = 1440412067 is a prime.

It is a super-2 number, since 2×1440412131² = 4149574214263922322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1440412098 and 1440412107.

It is not an unprimeable number, because it can be changed into a prime (1440412133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588871 + ... + 591311.

It is an arithmetic number, because the mean of its divisors is an integer number (120732480).

Almost surely, 2^1440412131 is an apocalyptic number.

1440412131 is a deficient number, since it is larger than the sum of its proper divisors (491307549).

1440412131 is a wasteful number, since it uses less digits than its factorization.

1440412131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1440412131 is about 37952.7618362617. The cubic root of 1440412131 is about 1129.3509549701.

Adding to 1440412131 its reverse (1312140441), we get a palindrome (2752552572).

The spelling of 1440412131 in words is "one billion, four hundred forty million, four hundred twelve thousand, one hundred thirty-one".