1604203200 has 252 divisors, whose sum is σ = 5763390048. Its totient is φ = 423168000.

The previous prime is 1604203189. The next prime is 1604203217. The reversal of 1604203200 is 23024061.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1453849 + ... + 1454951.

Almost surely, 2^1604203200 is an apocalyptic number.

1604203200 is a gapful number since it is divisible by the number (10) 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 1604203200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2881695024).

1604203200 is an abundant number, since it is smaller than the sum of its proper divisors (4159186848).

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

1604203200 is a wasteful number, since it uses less digits than its factorization.

1604203200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1604203200 is about 40052.5055396039. The cubic root of 1604203200 is about 1170.6303856927.

Adding to 1604203200 its reverse (23024061), we get a palindrome (1627227261).

The spelling of 1604203200 in words is "one billion, six hundred four million, two hundred three thousand, two hundred".