1403440045 has 16 divisors (see below), whose sum is σ = 1971664128. Its totient is φ = 938885760.

The previous prime is 1403440039. The next prime is 1403440057. The reversal of 1403440045 is 5400443041.

It is not a de Polignac number, because 1403440045 - 2²¹ = 1401342893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487569 + ... + 490438.

It is an arithmetic number, because the mean of its divisors is an integer number (123229008).

Almost surely, 2^1403440045 is an apocalyptic number.

It is an amenable number.

1403440045 is a deficient number, since it is larger than the sum of its proper divisors (568224083).

1403440045 is an equidigital number, since it uses as much as digits as its factorization.

1403440045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978060.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1403440045 is about 37462.5151985288. The cubic root of 1403440045 is about 1119.6044641248.

Adding to 1403440045 its reverse (5400443041), we get a palindrome (6803883086).

The spelling of 1403440045 in words is "one billion, four hundred three million, four hundred forty thousand, forty-five".