1609042 has 4 divisors (see below), whose sum is σ = 2413566. Its totient is φ = 804520.

The previous prime is 1609037. The next prime is 1609043. The reversal of 1609042 is 2409061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1347921 + 261121 = 1161^2 + 511^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1609043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402259 + ... + 402262.

2^1609042 is an apocalyptic number.

1609042 is a deficient number, since it is larger than the sum of its proper divisors (804524).

1609042 is an equidigital number, since it uses as much as digits as its factorization.

1609042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804523.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1609042 is about 1268.4801929869. The cubic root of 1609042 is about 117.1806205265.

The spelling of 1609042 in words is "one million, six hundred nine thousand, forty-two".