13228236400 has 60 divisors (see below), whose sum is σ = 31899241800. Its totient is φ = 5271581440.

The previous prime is 13228236391. The next prime is 13228236421. The reversal of 13228236400 is 463282231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46131 + ... + 169069.

It is an arithmetic number, because the mean of its divisors is an integer number (531654030).

Almost surely, 2^13228236400 is an apocalyptic number.

13228236400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13228236400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15949620900).

13228236400 is an abundant number, since it is smaller than the sum of its proper divisors (18671005400).

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

13228236400 is a wasteful number, since it uses less digits than its factorization.

13228236400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123226 (or 123215 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 13228236400 in words is "thirteen billion, two hundred twenty-eight million, two hundred thirty-six thousand, four hundred".