13400422 has 12 divisors (see below), whose sum is σ = 23382540. Its totient is φ = 5742996.

The previous prime is 13400417. The next prime is 13400441. The reversal of 13400422 is 22400431.

It is a junction number, because it is equal to n+sod(n) for n = 13400396 and 13400405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68272 + ... + 68467.

It is an arithmetic number, because the mean of its divisors is an integer number (1948545).

Almost surely, 2^13400422 is an apocalyptic number.

13400422 is a deficient number, since it is larger than the sum of its proper divisors (9982118).

13400422 is a wasteful number, since it uses less digits than its factorization.

13400422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136755 (or 136748 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 13400422 is about 3660.6586838983. The cubic root of 13400422 is about 237.5232671573.

Adding to 13400422 its reverse (22400431), we get a palindrome (35800853).

Subtracting 13400422 from its reverse (22400431), we obtain a palindrome (9000009).

The spelling of 13400422 in words is "thirteen million, four hundred thousand, four hundred twenty-two".