1604197128 has 16 divisors (see below), whose sum is σ = 4010492880. Its totient is φ = 534732368.

The previous prime is 1604197097. The next prime is 1604197171. The reversal of 1604197128 is 8217914061.

1604197128 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33420750 + ... + 33420797.

It is an arithmetic number, because the mean of its divisors is an integer number (250655805).

Almost surely, 2^1604197128 is an apocalyptic number.

It is an amenable number.

1604197128 is an abundant number, since it is smaller than the sum of its proper divisors (2406295752).

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

1604197128 is a wasteful number, since it uses less digits than its factorization.

1604197128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66841556 (or 66841552 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1604197128 is about 40052.4297390308. The cubic root of 1604197128 is about 1170.6289087234.

The spelling of 1604197128 in words is "one billion, six hundred four million, one hundred ninety-seven thousand, one hundred twenty-eight".