1136609808 has 40 divisors (see below), whose sum is σ = 3015604608. Its totient is φ = 368629632.

The previous prime is 1136609777. The next prime is 1136609839. The reversal of 1136609808 is 8089066311.

It is an interprime number because it is at equal distance from previous prime (1136609777) and next prime (1136609839).

It is a self number, because there is not a number n which added to its sum of digits gives 1136609808.

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, 318216 + ... + 321767.

Almost surely, 2^1136609808 is an apocalyptic number.

It is an amenable number.

1136609808 is an abundant number, since it is smaller than the sum of its proper divisors (1878994800).

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

1136609808 is a wasteful number, since it uses less digits than its factorization.

1136609808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640031 (or 640025 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1136609808 is about 33713.6442408708. The cubic root of 1136609808 is about 1043.6073595792.

The spelling of 1136609808 in words is "one billion, one hundred thirty-six million, six hundred nine thousand, eight hundred eight".