13228534 has 8 divisors (see below), whose sum is σ = 21646728. Its totient is φ = 6012960.

The previous prime is 13228531. The next prime is 13228577. The reversal of 13228534 is 43582231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13228534² = 349988223578312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300627 + ... + 300670.

It is an arithmetic number, because the mean of its divisors is an integer number (2705841).

Almost surely, 2^13228534 is an apocalyptic number.

13228534 is a deficient number, since it is larger than the sum of its proper divisors (8418194).

13228534 is a wasteful number, since it uses less digits than its factorization.

13228534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601310.

The product of its digits is 5760, while the sum is 28.

The square root of 13228534 is about 3637.1051675749. The cubic root of 13228534 is about 236.5033187007.

The spelling of 13228534 in words is "thirteen million, two hundred twenty-eight thousand, five hundred thirty-four".