13402240423 has 8 divisors (see below), whose sum is σ = 15745289616. Its totient is φ = 11246635200.

The previous prime is 13402240393. The next prime is 13402240457. The reversal of 13402240423 is 32404220431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13402240423 - 2⁵ = 13402240391 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 (13402240483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46860838 + ... + 46861123.

It is an arithmetic number, because the mean of its divisors is an integer number (1968161202).

Almost surely, 2^13402240423 is an apocalyptic number.

13402240423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13402240423 is a deficient number, since it is larger than the sum of its proper divisors (2343049193).

13402240423 is a wasteful number, since it uses less digits than its factorization.

13402240423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93721985.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 13402240423 its reverse (32404220431), we get a palindrome (45806460854).

The spelling of 13402240423 in words is "thirteen billion, four hundred two million, two hundred forty thousand, four hundred twenty-three".