20892118 has 24 divisors (see below), whose sum is σ = 34297128. Its totient is φ = 9539712.

The previous prime is 20892101. The next prime is 20892121. The reversal of 20892118 is 81129802.

It is a happy number.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20892118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37921 + ... + 38467.

It is an arithmetic number, because the mean of its divisors is an integer number (1429047).

Almost surely, 2^20892118 is an apocalyptic number.

20892118 is a deficient number, since it is larger than the sum of its proper divisors (13405010).

20892118 is a wasteful number, since it uses less digits than its factorization.

20892118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 20892118 is about 4570.7896473148. The cubic root of 20892118 is about 275.4191646267.

The spelling of 20892118 in words is "twenty million, eight hundred ninety-two thousand, one hundred eighteen".