1609309796 has 6 divisors (see below), whose sum is σ = 2816292150. Its totient is φ = 804654896.

The previous prime is 1609309771. The next prime is 1609309799. The reversal of 1609309796 is 6979039061.

It can be written as a sum of positive squares in only one way, i.e., 1578949696 + 30360100 = 39736^2 + 5510^2 .

It is not an unprimeable number, because it can be changed into a prime (1609309799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201163721 + ... + 201163728.

It is an arithmetic number, because the mean of its divisors is an integer number (469382025).

Almost surely, 2^1609309796 is an apocalyptic number.

It is an amenable number.

1609309796 is a deficient number, since it is larger than the sum of its proper divisors (1206982354).

1609309796 is a wasteful number, since it uses less digits than its factorization.

1609309796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402327453 (or 402327451 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 1609309796 is about 40116.2036588708. The cubic root of 1609309796 is about 1171.8712103235.

The spelling of 1609309796 in words is "one billion, six hundred nine million, three hundred nine thousand, seven hundred ninety-six".