1440113403 has 16 divisors (see below), whose sum is σ = 1958017536. Its totient is φ = 941172960.

The previous prime is 1440113393. The next prime is 1440113419. The reversal of 1440113403 is 3043110441.

It is not a de Polignac number, because 1440113403 - 2¹⁰ = 1440112379 is a prime.

It is a super-2 number, since 2×1440113403² = 4147853227000480818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1440113403.

It is not an unprimeable number, because it can be changed into a prime (1440113483) 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, 233388 + ... + 239478.

It is an arithmetic number, because the mean of its divisors is an integer number (122376096).

Almost surely, 2^1440113403 is an apocalyptic number.

1440113403 is a deficient number, since it is larger than the sum of its proper divisors (517904133).

1440113403 is a wasteful number, since it uses less digits than its factorization.

1440113403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634.

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

The square root of 1440113403 is about 37948.8261083265. The cubic root of 1440113403 is about 1129.2728772982.

Adding to 1440113403 its reverse (3043110441), we get a palindrome (4483223844).

The spelling of 1440113403 in words is "one billion, four hundred forty million, one hundred thirteen thousand, four hundred three".