216450342 has 24 divisors (see below), whose sum is σ = 471032640. Its totient is φ = 71833680.

The previous prime is 216450331. The next prime is 216450343. The reversal of 216450342 is 243054612.

216450342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216450343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22134 + ... + 30377.

It is an arithmetic number, because the mean of its divisors is an integer number (19626360).

Almost surely, 2^216450342 is an apocalyptic number.

216450342 is an abundant number, since it is smaller than the sum of its proper divisors (254582298).

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

216450342 is a wasteful number, since it uses less digits than its factorization.

216450342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52748 (or 52745 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 216450342 is about 14712.2514252578. The cubic root of 216450342 is about 600.4166938767.

The spelling of 216450342 in words is "two hundred sixteen million, four hundred fifty thousand, three hundred forty-two".