13224400028 has 48 divisors (see below), whose sum is σ = 28028125440. Its totient is φ = 5329733376.

The previous prime is 13224400027. The next prime is 13224400067. The reversal of 13224400028 is 82000442231.

It is a super-2 number, since 2×13224400028² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224400027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588251 + ... + 610317.

It is an arithmetic number, because the mean of its divisors is an integer number (583919280).

Almost surely, 2^13224400028 is an apocalyptic number.

It is an amenable number.

13224400028 is an abundant number, since it is smaller than the sum of its proper divisors (14803725412).

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

13224400028 is a wasteful number, since it uses less digits than its factorization.

13224400028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23354 (or 23352 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 13224400028 its reverse (82000442231), we get a palindrome (95224842259).

The spelling of 13224400028 in words is "thirteen billion, two hundred twenty-four million, four hundred thousand, twenty-eight".