20218802 has 8 divisors (see below), whose sum is σ = 30560112. Its totient is φ = 10032100.

The previous prime is 20218799. The next prime is 20218819. The reversal of 20218802 is 20881202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38324 + ... + 38847.

It is an arithmetic number, because the mean of its divisors is an integer number (3820014).

Almost surely, 2^20218802 is an apocalyptic number.

20218802 is a deficient number, since it is larger than the sum of its proper divisors (10341310).

20218802 is a wasteful number, since it uses less digits than its factorization.

20218802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77304.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 20218802 is about 4496.5322193886. The cubic root of 20218802 is about 272.4280403656.

The spelling of 20218802 in words is "twenty million, two hundred eighteen thousand, eight hundred two".