36021808 has 20 divisors (see below), whose sum is σ = 69926080. Its totient is φ = 17976384.

The previous prime is 36021803. The next prime is 36021809. The reversal of 36021808 is 80812063.

It is not an unprimeable number, because it can be changed into a prime (36021803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7858 + ... + 11566.

It is an arithmetic number, because the mean of its divisors is an integer number (3496304).

Almost surely, 2^36021808 is an apocalyptic number.

It is an amenable number.

36021808 is a deficient number, since it is larger than the sum of its proper divisors (33904272).

36021808 is a wasteful number, since it uses less digits than its factorization.

36021808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324 (or 4318 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 36021808 is about 6001.8170581916. The cubic root of 36021808 is about 330.2593859024.

The spelling of 36021808 in words is "thirty-six million, twenty-one thousand, eight hundred eight".