13401404424 has 64 divisors (see below), whose sum is σ = 38091873600. Its totient is φ = 4363244928.

The previous prime is 13401404417. The next prime is 13401404431. The reversal of 13401404424 is 42440410431.

It is an interprime number because it is at equal distance from previous prime (13401404417) and next prime (13401404431).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 712149 + ... + 730724.

It is an arithmetic number, because the mean of its divisors is an integer number (595185525).

Almost surely, 2^13401404424 is an apocalyptic number.

It is an amenable number.

13401404424 is an abundant number, since it is smaller than the sum of its proper divisors (24690469176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13401404424 is a wasteful number, since it uses less digits than its factorization.

13401404424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442931 (or 1442921 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 13401404424 its reverse (42440410431), we get a palindrome (55841814855).

The spelling of 13401404424 in words is "thirteen billion, four hundred one million, four hundred four thousand, four hundred twenty-four".