218960812 has 36 divisors (see below), whose sum is σ = 460133184. Its totient is φ = 90810720.

The previous prime is 218960771. The next prime is 218960831. The reversal of 218960812 is 218069812.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11943 + ... + 24094.

Almost surely, 2^218960812 is an apocalyptic number.

It is an amenable number.

218960812 is an abundant number, since it is smaller than the sum of its proper divisors (241172372).

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

218960812 is a wasteful number, since it uses less digits than its factorization.

218960812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36086 (or 36077 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 218960812 is about 14797.3244878931. The cubic root of 218960812 is about 602.7290608178.

It can be divided in two parts, 2189 and 60812, that added together give a square (63001 = 251²).

The spelling of 218960812 in words is "two hundred eighteen million, nine hundred sixty thousand, eight hundred twelve".