1609434 has 12 divisors (see below), whose sum is σ = 3487146. Its totient is φ = 536472.

The previous prime is 1609423. The next prime is 1609457. The reversal of 1609434 is 4349061.

It can be written as a sum of positive squares in only one way, i.e., 1404225 + 205209 = 1185^2 + 453^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1609398 and 1609407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44689 + ... + 44724.

2^1609434 is an apocalyptic number.

1609434 is an abundant number, since it is smaller than the sum of its proper divisors (1877712).

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

1609434 is a wasteful number, since it uses less digits than its factorization.

1609434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89421 (or 89418 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1609434 is about 1268.6346991944. The cubic root of 1609434 is about 117.1901357274.

The spelling of 1609434 in words is "one million, six hundred nine thousand, four hundred thirty-four".