1403356423 has 24 divisors (see below), whose sum is σ = 1664089920. Its totient is φ = 1179702720.

The previous prime is 1403356403. The next prime is 1403356433. The reversal of 1403356423 is 3246533041.

It is not a de Polignac number, because 1403356423 - 2⁹ = 1403355911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403356403) 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, 1951458 + ... + 1952176.

It is an arithmetic number, because the mean of its divisors is an integer number (69337080).

Almost surely, 2^1403356423 is an apocalyptic number.

1403356423 is a deficient number, since it is larger than the sum of its proper divisors (260733497).

1403356423 is an equidigital number, since it uses as much as digits as its factorization.

1403356423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 1403356423 is about 37461.3991062801. The cubic root of 1403356423 is about 1119.5822269977.

Adding to 1403356423 its reverse (3246533041), we get a palindrome (4649889464).

The spelling of 1403356423 in words is "one billion, four hundred three million, three hundred fifty-six thousand, four hundred twenty-three".