13022428 has 12 divisors (see below), whose sum is σ = 22843800. Its totient is φ = 6495632.

The previous prime is 13022423. The next prime is 13022441. The reversal of 13022428 is 82422031.

It is a junction number, because it is equal to n+sod(n) for n = 13022399 and 13022408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1903 + ... + 5446.

It is an arithmetic number, because the mean of its divisors is an integer number (1903650).

Almost surely, 2^13022428 is an apocalyptic number.

It is an amenable number.

13022428 is a deficient number, since it is larger than the sum of its proper divisors (9821372).

13022428 is a wasteful number, since it uses less digits than its factorization.

13022428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7796 (or 7794 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 13022428 is about 3608.6601391652. The cubic root of 13022428 is about 235.2686109165.

Adding to 13022428 its reverse (82422031), we get a palindrome (95444459).

The spelling of 13022428 in words is "thirteen million, twenty-two thousand, four hundred twenty-eight".