13402424 has 16 divisors (see below), whose sum is σ = 28719600. Its totient is φ = 5743872.

The previous prime is 13402423. The next prime is 13402427. The reversal of 13402424 is 42420431.

It is a junction number, because it is equal to n+sod(n) for n = 13402396 and 13402405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119609 + ... + 119720.

It is an arithmetic number, because the mean of its divisors is an integer number (1794975).

Almost surely, 2^13402424 is an apocalyptic number.

13402424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13402424 is an abundant number, since it is smaller than the sum of its proper divisors (15317176).

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

13402424 is a wasteful number, since it uses less digits than its factorization.

13402424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239342 (or 239338 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 13402424 is about 3660.9321217417. The cubic root of 13402424 is about 237.5350950908.

Adding to 13402424 its reverse (42420431), we get a palindrome (55822855).

The spelling of 13402424 in words is "thirteen million, four hundred two thousand, four hundred twenty-four".