1604235464 has 64 divisors (see below), whose sum is σ = 3579085440. Its totient is φ = 666547200.

The previous prime is 1604235407. The next prime is 1604235467. The reversal of 1604235464 is 4645324061.

It is not an unprimeable number, because it can be changed into a prime (1604235467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20939 + ... + 60389.

It is an arithmetic number, because the mean of its divisors is an integer number (55923210).

Almost surely, 2^1604235464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1604235464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1789542720).

1604235464 is an abundant number, since it is smaller than the sum of its proper divisors (1974849976).

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

1604235464 is a wasteful number, since it uses less digits than its factorization.

1604235464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39510 (or 39506 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 1604235464 is about 40052.9083088856. The cubic root of 1604235464 is about 1170.6382336107.

The spelling of 1604235464 in words is "one billion, six hundred four million, two hundred thirty-five thousand, four hundred sixty-four".