12258828 has 36 divisors (see below), whose sum is σ = 31143840. Its totient is φ = 4065696.

The previous prime is 12258823. The next prime is 12258833. The reversal of 12258828 is 82885221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12258823) and next prime (12258833).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12258792 and 12258801.

It is not an unprimeable number, because it can be changed into a prime (12258821) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7501 + ... + 8987.

Almost surely, 2^12258828 is an apocalyptic number.

12258828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12258828 is an abundant number, since it is smaller than the sum of its proper divisors (18885012).

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

12258828 is a wasteful number, since it uses less digits than its factorization.

12258828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1721 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 12258828 is about 3501.2609157274. The cubic root of 12258828 is about 230.5771767232.

It can be divided in two parts, 12 and 258828, that added together give a triangular number (258840 = T₇₁₉).

The spelling of 12258828 in words is "twelve million, two hundred fifty-eight thousand, eight hundred twenty-eight".