1403240013 has 24 divisors (see below), whose sum is σ = 2318150016. Its totient is φ = 801266400.

The previous prime is 1403240009. The next prime is 1403240021. The reversal of 1403240013 is 3100423041.

It is not a de Polignac number, because 1403240013 - 2² = 1403240009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403240053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87823 + ... + 102563.

It is an arithmetic number, because the mean of its divisors is an integer number (96589584).

Almost surely, 2^1403240013 is an apocalyptic number.

It is an amenable number.

1403240013 is a deficient number, since it is larger than the sum of its proper divisors (914910003).

1403240013 is a wasteful number, since it uses less digits than its factorization.

1403240013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16265 (or 16262 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1403240013 is about 37459.8453413785. The cubic root of 1403240013 is about 1119.5512692717.

Adding to 1403240013 its reverse (3100423041), we get a palindrome (4503663054).

It can be divided in two parts, 14032 and 40013, that added together give a palindrome (54045).

The spelling of 1403240013 in words is "one billion, four hundred three million, two hundred forty thousand, thirteen".