1604062020 has 48 divisors (see below), whose sum is σ = 4899682368. Its totient is φ = 388863360.

The previous prime is 1604061997. The next prime is 1604062037. The reversal of 1604062020 is 202604061.

It is a happy number.

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, 1214539 + ... + 1215858.

It is an arithmetic number, because the mean of its divisors is an integer number (102076716).

Almost surely, 2^1604062020 is an apocalyptic number.

1604062020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1604062020 is an abundant number, since it is smaller than the sum of its proper divisors (3295620348).

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

1604062020 is a wasteful number, since it uses less digits than its factorization.

1604062020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430420 (or 2430418 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1604062020 is about 40050.7430642679. The cubic root of 1604062020 is about 1170.5960437327.

Adding to 1604062020 its reverse (202604061), we get a palindrome (1806666081).

The spelling of 1604062020 in words is "one billion, six hundred four million, sixty-two thousand, twenty".