13400424040 has 16 divisors (see below), whose sum is σ = 30150954180. Its totient is φ = 5360169600.

The previous prime is 13400423957. The next prime is 13400424041. The reversal of 13400424040 is 4042400431.

It can be written as a sum of positive squares in 2 ways, for example, as 11164458244 + 2235965796 = 105662^2 + 47286^2 .

It is not an unprimeable number, because it can be changed into a prime (13400424041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167505261 + ... + 167505340.

Almost surely, 2^13400424040 is an apocalyptic number.

13400424040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13400424040 is an abundant number, since it is smaller than the sum of its proper divisors (16750530140).

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

13400424040 is a wasteful number, since it uses less digits than its factorization.

13400424040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335010612 (or 335010608 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 13400424040 its reverse (4042400431), we get a palindrome (17442824471).

The spelling of 13400424040 in words is "thirteen billion, four hundred million, four hundred twenty-four thousand, forty".