20218162 has 16 divisors (see below), whose sum is σ = 31492800. Its totient is φ = 9723280.

The previous prime is 20218141. The next prime is 20218183. The reversal of 20218162 is 26181202.

It is an interprime number because it is at equal distance from previous prime (20218141) and next prime (20218183).

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, 20337 + ... + 21307.

It is an arithmetic number, because the mean of its divisors is an integer number (1968300).

Almost surely, 2^20218162 is an apocalyptic number.

20218162 is a deficient number, since it is larger than the sum of its proper divisors (11274638).

20218162 is a wasteful number, since it uses less digits than its factorization.

20218162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 20218162 is about 4496.4610528726. The cubic root of 20218162 is about 272.4251658830.

Adding to 20218162 its reverse (26181202), we get a palindrome (46399364).

The spelling of 20218162 in words is "twenty million, two hundred eighteen thousand, one hundred sixty-two".