218032842 has 8 divisors (see below), whose sum is σ = 436065696. Its totient is φ = 72677612.

The previous prime is 218032813. The next prime is 218032853. The reversal of 218032842 is 248230812.

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

218032842 is an admirable 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, 18169398 + ... + 18169409.

It is an arithmetic number, because the mean of its divisors is an integer number (54508212).

Almost surely, 2^218032842 is an apocalyptic number.

218032842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

218032842 is a wasteful number, since it uses less digits than its factorization.

218032842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36338812.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 218032842 is about 14765.9351888053. The cubic root of 218032842 is about 601.8763869474.

The spelling of 218032842 in words is "two hundred eighteen million, thirty-two thousand, eight hundred forty-two".