1606529642 has 8 divisors (see below), whose sum is σ = 2418494916. Its totient is φ = 800364672.

The previous prime is 1606529623. The next prime is 1606529669. The reversal of 1606529642 is 2469256061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1606326241 + 203401 = 40079^2 + 451^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1606529642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449383 + ... + 1450490.

Almost surely, 2^1606529642 is an apocalyptic number.

1606529642 is a deficient number, since it is larger than the sum of its proper divisors (811965274).

1606529642 is a wasteful number, since it uses less digits than its factorization.

1606529642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900152.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 1606529642 is about 40081.5374206130. The cubic root of 1606529642 is about 1171.1960015380.

The spelling of 1606529642 in words is "one billion, six hundred six million, five hundred twenty-nine thousand, six hundred forty-two".