12519828 has 18 divisors (see below), whose sum is σ = 31647434. Its totient is φ = 4173264.

The previous prime is 12519817. The next prime is 12519833. The reversal of 12519828 is 82891521.

12519828 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12027024 + 492804 = 3468^2 + 702^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 347773 = 12519828 / (1 + 2 + 5 + 1 + 9 + 8 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 12519792 and 12519801.

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, 173851 + ... + 173922.

Almost surely, 2^12519828 is an apocalyptic number.

12519828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12519828 is an abundant number, since it is smaller than the sum of its proper divisors (19127606).

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

12519828 is a wasteful number, since it uses less digits than its factorization.

12519828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347783 (or 347778 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 12519828 is about 3538.3368974703. The cubic root of 12519828 is about 232.2020880858.

The spelling of 12519828 in words is "twelve million, five hundred nineteen thousand, eight hundred twenty-eight".