13452228 has 72 divisors (see below), whose sum is σ = 36429120. Its totient is φ = 4173120.

The previous prime is 13452211. The next prime is 13452319. The reversal of 13452228 is 82225431.

13452228 is a `hidden beast` number, since 134 + 522 + 2 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48426 + ... + 48702.

It is an arithmetic number, because the mean of its divisors is an integer number (505960).

Almost surely, 2^13452228 is an apocalyptic number.

13452228 is a gapful number since it is divisible by the number (18) 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 13452228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18214560).

13452228 is an abundant number, since it is smaller than the sum of its proper divisors (22976892).

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

13452228 is a wasteful number, since it uses less digits than its factorization.

13452228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 372 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 13452228 is about 3667.7279070291. The cubic root of 13452228 is about 237.8289616880.

Adding to 13452228 its reverse (82225431), we get a palindrome (95677659).

The spelling of 13452228 in words is "thirteen million, four hundred fifty-two thousand, two hundred twenty-eight".