12489804 has 18 divisors (see below), whose sum is σ = 31571540. Its totient is φ = 4163256.

The previous prime is 12489803. The next prime is 12489809. The reversal of 12489804 is 40898421.

12489804 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 is a tau number, because it is divible by the number of its divisors (18).

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: 346939 = 12489804 / (1 + 2 + 4 + 8 + 9 + 8 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (12489803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173434 + ... + 173505.

Almost surely, 2^12489804 is an apocalyptic number.

It is an amenable number.

12489804 is an abundant number, since it is smaller than the sum of its proper divisors (19081736).

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

12489804 is a wasteful number, since it uses less digits than its factorization.

12489804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346949 (or 346944 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 12489804 is about 3534.0916796258. The cubic root of 12489804 is about 232.0163236632.

The spelling of 12489804 in words is "twelve million, four hundred eighty-nine thousand, eight hundred four".