1204047128 has 32 divisors (see below), whose sum is σ = 2359272960. Its totient is φ = 575504160.

The previous prime is 1204047113. The next prime is 1204047133. The reversal of 1204047128 is 8217404021.

It is a self number, because there is not a number n which added to its sum of digits gives 1204047128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21068 + ... + 53403.

It is an arithmetic number, because the mean of its divisors is an integer number (73727280).

Almost surely, 2^1204047128 is an apocalyptic number.

It is an amenable number.

1204047128 is a deficient number, since it is larger than the sum of its proper divisors (1155225832).

1204047128 is a wasteful number, since it uses less digits than its factorization.

1204047128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74567 (or 74563 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 1204047128 is about 34699.3822423397. The cubic root of 1204047128 is about 1063.8518717978.

The spelling of 1204047128 in words is "one billion, two hundred four million, forty-seven thousand, one hundred twenty-eight".