1609728196 has 12 divisors (see below), whose sum is σ = 2907896320. Its totient is φ = 778900680.

The previous prime is 1609728193. The next prime is 1609728233. The reversal of 1609728196 is 6918279061.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1609728191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6490716 + ... + 6490963.

Almost surely, 2^1609728196 is an apocalyptic number.

It is an amenable number.

1609728196 is a deficient number, since it is larger than the sum of its proper divisors (1298168124).

1609728196 is a wasteful number, since it uses less digits than its factorization.

1609728196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12981714 (or 12981712 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1609728196 is about 40121.4181703489. The cubic root of 1609728196 is about 1171.9727587078.

The spelling of 1609728196 in words is "one billion, six hundred nine million, seven hundred twenty-eight thousand, one hundred ninety-six".