1609099436 has 96 divisors (see below), whose sum is σ = 3661056000. Its totient is φ = 614718720.

The previous prime is 1609099421. The next prime is 1609099463. The reversal of 1609099436 is 6349909061.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441341 + ... + 444971.

It is an arithmetic number, because the mean of its divisors is an integer number (38136000).

Almost surely, 2^1609099436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1609099436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830528000).

1609099436 is an abundant number, since it is smaller than the sum of its proper divisors (2051956564).

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

1609099436 is a wasteful number, since it uses less digits than its factorization.

1609099436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692 (or 3676 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 1609099436 is about 40113.5816899962. The cubic root of 1609099436 is about 1171.8201479426.

The spelling of 1609099436 in words is "one billion, six hundred nine million, ninety-nine thousand, four hundred thirty-six".