1604402712 has 96 divisors (see below), whose sum is σ = 4989816000. Its totient is φ = 460589760.

The previous prime is 1604402711. The next prime is 1604402717. The reversal of 1604402712 is 2172044061.

1604402712 is a `hidden beast` number, since 1 + 604 + 40 + 2 + 7 + 12 = 666.

1604402712 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604402711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38262 + ... + 68357.

It is an arithmetic number, because the mean of its divisors is an integer number (51977250).

Almost surely, 2^1604402712 is an apocalyptic number.

1604402712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1604402712 is an abundant number, since it is smaller than the sum of its proper divisors (3385413288).

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

1604402712 is a wasteful number, since it uses less digits than its factorization.

1604402712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106661 (or 106654 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1604402712 is about 40054.9960928721. The cubic root of 1604402712 is about 1170.6789134453.

Adding to 1604402712 its reverse (2172044061), we get a palindrome (3776446773).

The spelling of 1604402712 in words is "one billion, six hundred four million, four hundred two thousand, seven hundred twelve".