13402426 has 16 divisors (see below), whose sum is σ = 21741696. Its totient is φ = 6172096.

The previous prime is 13402423. The next prime is 13402427. The reversal of 13402426 is 62420431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13402397 and 13402406.

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 7 ways as a sum of consecutive naturals, for example, 2596 + ... + 5791.

It is an arithmetic number, because the mean of its divisors is an integer number (1358856).

Almost surely, 2^13402426 is an apocalyptic number.

13402426 is a deficient number, since it is larger than the sum of its proper divisors (8339270).

13402426 is a wasteful number, since it uses less digits than its factorization.

13402426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8453.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 13402426 is about 3660.9323948961. The cubic root of 13402426 is about 237.5351069063.

Adding to 13402426 its reverse (62420431), we get a palindrome (75822857).

The spelling of 13402426 in words is "thirteen million, four hundred two thousand, four hundred twenty-six".