216242534 has 8 divisors (see below), whose sum is σ = 341435640. Its totient is φ = 102430656.

The previous prime is 216242503. The next prime is 216242599. The reversal of 216242534 is 435242612.

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

It is a junction number, because it is equal to n+sod(n) for n = 216242497 and 216242506.

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, 2845259 + ... + 2845334.

It is an arithmetic number, because the mean of its divisors is an integer number (42679455).

Almost surely, 2^216242534 is an apocalyptic number.

216242534 is a deficient number, since it is larger than the sum of its proper divisors (125193106).

216242534 is a wasteful number, since it uses less digits than its factorization.

216242534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690614.

The product of its digits is 11520, while the sum is 29.

The square root of 216242534 is about 14705.1873160460. The cubic root of 216242534 is about 600.2244845192.

The spelling of 216242534 in words is "two hundred sixteen million, two hundred forty-two thousand, five hundred thirty-four".