1604284000 has 288 divisors, whose sum is σ = 4583228832. Its totient is φ = 547200000.

The previous prime is 1604283991. The next prime is 1604284001. The reversal of 1604284000 is 4824061.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604284001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15883950 + ... + 15884050.

It is an arithmetic number, because the mean of its divisors is an integer number (15913989).

Almost surely, 2^1604284000 is an apocalyptic number.

1604284000 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 1604284000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2291614416).

1604284000 is an abundant number, since it is smaller than the sum of its proper divisors (2978944832).

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

1604284000 is a wasteful number, since it uses less digits than its factorization.

1604284000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1604284000 is about 40053.5142028761. The cubic root of 1604284000 is about 1170.6500393432.

The spelling of 1604284000 in words is "one billion, six hundred four million, two hundred eighty-four thousand".