1604196612 has 36 divisors (see below), whose sum is σ = 4072477500. Its totient is φ = 532434432.

The previous prime is 1604196599. The next prime is 1604196623. The reversal of 1604196612 is 2166914061.

It can be written as a sum of positive squares in 2 ways, for example, as 579172356 + 1025024256 = 24066^2 + 32016^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87237 + ... + 104012.

It is an arithmetic number, because the mean of its divisors is an integer number (113124375).

Almost surely, 2^1604196612 is an apocalyptic number.

1604196612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1604196612 is an abundant number, since it is smaller than the sum of its proper divisors (2468280888).

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

1604196612 is a wasteful number, since it uses less digits than its factorization.

1604196612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191492 (or 191487 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1604196612 is about 40052.4232974735. The cubic root of 1604196612 is about 1170.6287832100.

The spelling of 1604196612 in words is "one billion, six hundred four million, one hundred ninety-six thousand, six hundred twelve".