20286118 has 8 divisors (see below), whose sum is σ = 30597840. Its totient is φ = 10086840.

The previous prime is 20286107. The next prime is 20286131. The reversal of 20286118 is 81168202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27658 + ... + 28381.

It is an arithmetic number, because the mean of its divisors is an integer number (3824730).

Almost surely, 2^20286118 is an apocalyptic number.

20286118 is a deficient number, since it is larger than the sum of its proper divisors (10311722).

20286118 is a wasteful number, since it uses less digits than its factorization.

20286118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56222.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 20286118 is about 4504.0113232540. The cubic root of 20286118 is about 272.7300439382.

It can be divided in two parts, 202 and 86118, that added together give a triangular number (86320 = T₄₁₅).

The spelling of 20286118 in words is "twenty million, two hundred eighty-six thousand, one hundred eighteen".