218349342 has 24 divisors (see below), whose sum is σ = 473588544. Its totient is φ = 72706464.

The previous prime is 218349331. The next prime is 218349371. The reversal of 218349342 is 243943812.

It is a junction number, because it is equal to n+sod(n) for n = 218349297 and 218349306.

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, 12723 + ... + 24465.

It is an arithmetic number, because the mean of its divisors is an integer number (19732856).

Almost surely, 2^218349342 is an apocalyptic number.

218349342 is an abundant number, since it is smaller than the sum of its proper divisors (255239202).

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

218349342 is a wasteful number, since it uses less digits than its factorization.

218349342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12784 (or 12781 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 218349342 is about 14776.6485374729. The cubic root of 218349342 is about 602.1674773084.

The spelling of 218349342 in words is "two hundred eighteen million, three hundred forty-nine thousand, three hundred forty-two".