1609281606 has 8 divisors (see below), whose sum is σ = 3218563224. Its totient is φ = 536427200.

The previous prime is 1609281593. The next prime is 1609281607. The reversal of 1609281606 is 6061829061.

It is a sphenic number, since it is the product of 3 distinct primes.

1609281606 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609281607) 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, 134106795 + ... + 134106806.

It is an arithmetic number, because the mean of its divisors is an integer number (402320403).

Almost surely, 2^1609281606 is an apocalyptic number.

1609281606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1609281606 is a wasteful number, since it uses less digits than its factorization.

1609281606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268213606.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1609281606 is about 40115.8523030485. The cubic root of 1609281606 is about 1171.8643677954.

The spelling of 1609281606 in words is "one billion, six hundred nine million, two hundred eighty-one thousand, six hundred six".