1604630208 has 112 divisors (see below), whose sum is σ = 4403165184. Its totient is φ = 515312640.

The previous prime is 1604630201. The next prime is 1604630219. The reversal of 1604630208 is 8020364061.

1604630208 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1604630208² = 5149676208852246528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1604630201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759073 + ... + 761183.

Almost surely, 2^1604630208 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 1604630208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2201582592).

1604630208 is an abundant number, since it is smaller than the sum of its proper divisors (2798534976).

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

1604630208 is a wasteful number, since it uses less digits than its factorization.

1604630208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270 (or 2260 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1604630208 is about 40057.8357877707. The cubic root of 1604630208 is about 1170.7342429003.

Adding to 1604630208 its reverse (8020364061), we get a palindrome (9624994269).

The spelling of 1604630208 in words is "one billion, six hundred four million, six hundred thirty thousand, two hundred eight".