1604133930 has 32 divisors (see below), whose sum is σ = 4399910784. Its totient is φ = 366659136.

The previous prime is 1604133929. The next prime is 1604133941. The reversal of 1604133930 is 393314061.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3819157 + ... + 3819576.

It is an arithmetic number, because the mean of its divisors is an integer number (137497212).

Almost surely, 2^1604133930 is an apocalyptic number.

1604133930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1604133930 is an abundant number, since it is smaller than the sum of its proper divisors (2795776854).

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

1604133930 is a wasteful number, since it uses less digits than its factorization.

1604133930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7638750.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 1604133930 is about 40051.6407903596. The cubic root of 1604133930 is about 1170.6135360538.

Adding to 1604133930 its reverse (393314061), we get a palindrome (1997447991).

The spelling of 1604133930 in words is "one billion, six hundred four million, one hundred thirty-three thousand, nine hundred thirty".