1604197056 has 224 divisors, whose sum is σ = 5571256320. Its totient is φ = 394675200.

The previous prime is 1604196947. The next prime is 1604197097. The reversal of 1604197056 is 6507914061.

1604197056 is digitally balanced in base 4, because in such base 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 (224).

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, 278041 + ... + 283751.

It is an arithmetic number, because the mean of its divisors is an integer number (24871680).

Almost surely, 2^1604197056 is an apocalyptic number.

1604197056 is a gapful number since it is divisible by the number (16) 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 1604197056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2785628160).

1604197056 is an abundant number, since it is smaller than the sum of its proper divisors (3967059264).

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

1604197056 is a wasteful number, since it uses less digits than its factorization.

1604197056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5763 (or 5753 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1604197056 is about 40052.4288402089. The cubic root of 1604197056 is about 1170.6288912099.

The spelling of 1604197056 in words is "one billion, six hundred four million, one hundred ninety-seven thousand, fifty-six".