13228398 has 12 divisors (see below), whose sum is σ = 28661568. Its totient is φ = 4409460.

The previous prime is 13228367. The next prime is 13228409. The reversal of 13228398 is 89382231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367438 + ... + 367473.

It is an arithmetic number, because the mean of its divisors is an integer number (2388464).

Almost surely, 2^13228398 is an apocalyptic number.

13228398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13228398 is an abundant number, since it is smaller than the sum of its proper divisors (15433170).

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

13228398 is a wasteful number, since it uses less digits than its factorization.

13228398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734919 (or 734916 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 13228398 is about 3637.0864713394. The cubic root of 13228398 is about 236.5025082163.

The spelling of 13228398 in words is "thirteen million, two hundred twenty-eight thousand, three hundred ninety-eight".