18820802 has 96 divisors (see below), whose sum is σ = 41368320. Its totient is φ = 6289920.

The previous prime is 18820801. The next prime is 18820817. The reversal of 18820802 is 20802881.

It is not an unprimeable number, because it can be changed into a prime (18820801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238199 + ... + 238277.

It is an arithmetic number, because the mean of its divisors is an integer number (430920).

Almost surely, 2^18820802 is an apocalyptic number.

18820802 is an abundant number, since it is smaller than the sum of its proper divisors (22547518).

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

18820802 is a wasteful number, since it uses less digits than its factorization.

18820802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 18820802 is about 4338.2948263114. The cubic root of 18820802 is about 265.9986149512.

The spelling of 18820802 in words is "eighteen million, eight hundred twenty thousand, eight hundred two".