1609244556 has 24 divisors (see below), whose sum is σ = 3842228544. Its totient is φ = 523939920.

The previous prime is 1609244537. The next prime is 1609244591. The reversal of 1609244556 is 6554429061.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558830 + ... + 1559861.

It is an arithmetic number, because the mean of its divisors is an integer number (160092856).

Almost surely, 2^1609244556 is an apocalyptic number.

It is an amenable number.

1609244556 is an abundant number, since it is smaller than the sum of its proper divisors (2232983988).

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

1609244556 is a wasteful number, since it uses less digits than its factorization.

1609244556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118741 (or 3118739 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 1609244556 is about 40115.3905128692. The cubic root of 1609244556 is about 1171.8553745677.

The spelling of 1609244556 in words is "one billion, six hundred nine million, two hundred forty-four thousand, five hundred fifty-six".