1604229120 has 432 divisors, whose sum is σ = 6079011120. Its totient is φ = 391053312.

The previous prime is 1604229073. The next prime is 1604229127. The reversal of 1604229120 is 219224061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604229127) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15574989 + ... + 15575091.

It is an arithmetic number, because the mean of its divisors is an integer number (14071785).

Almost surely, 2^1604229120 is an apocalyptic number.

1604229120 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 1604229120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3039505560).

1604229120 is an abundant number, since it is smaller than the sum of its proper divisors (4474782000).

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

1604229120 is a wasteful number, since it uses less digits than its factorization.

1604229120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1604229120 is about 40052.8291135595. The cubic root of 1604229120 is about 1170.6366905000.

The spelling of 1604229120 in words is "one billion, six hundred four million, two hundred twenty-nine thousand, one hundred twenty".