1604415648 has 48 divisors (see below), whose sum is σ = 4594466016. Its totient is φ = 486186240.

The previous prime is 1604415643. The next prime is 1604415671. The reversal of 1604415648 is 8465144061.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×1604415648³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1604415643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758611 + ... + 760722.

It is an arithmetic number, because the mean of its divisors is an integer number (95718042).

Almost surely, 2^1604415648 is an apocalyptic number.

It is an amenable number.

1604415648 is an abundant number, since it is smaller than the sum of its proper divisors (2990050368).

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

1604415648 is a wasteful number, since it uses less digits than its factorization.

1604415648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519357 (or 1519349 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 1604415648 is about 40055.1575705302. The cubic root of 1604415648 is about 1170.6820597588.

The spelling of 1604415648 in words is "one billion, six hundred four million, four hundred fifteen thousand, six hundred forty-eight".