12049128 has 128 divisors (see below), whose sum is σ = 41260800. Its totient is φ = 3172608.

The previous prime is 12049109. The next prime is 12049133. The reversal of 12049128 is 82194021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19350 + ... + 19962.

It is an arithmetic number, because the mean of its divisors is an integer number (322350).

Almost surely, 2^12049128 is an apocalyptic number.

12049128 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 12049128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20630400).

12049128 is an abundant number, since it is smaller than the sum of its proper divisors (29211672).

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

12049128 is a wasteful number, since it uses less digits than its factorization.

12049128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 12049128 is about 3471.1853883076. The cubic root of 12049128 is about 229.2548537880.

The spelling of 12049128 in words is "twelve million, forty-nine thousand, one hundred twenty-eight".