216260942 has 4 divisors (see below), whose sum is σ = 324391416. Its totient is φ = 108130470.

The previous prime is 216260923. The next prime is 216260951. The reversal of 216260942 is 249062612.

216260942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 216260899 and 216260908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54065234 + ... + 54065237.

It is an arithmetic number, because the mean of its divisors is an integer number (81097854).

Almost surely, 2^216260942 is an apocalyptic number.

216260942 is a deficient number, since it is larger than the sum of its proper divisors (108130474).

216260942 is a wasteful number, since it uses less digits than its factorization.

216260942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108130473.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 216260942 is about 14705.8132043080. The cubic root of 216260942 is about 600.2415157335.

The spelling of 216260942 in words is "two hundred sixteen million, two hundred sixty thousand, nine hundred forty-two".