216367742 has 8 divisors (see below), whose sum is σ = 332467632. Its totient is φ = 105545200.

The previous prime is 216367717. The next prime is 216367751. The reversal of 216367742 is 247763612.

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 = 216367696 and 216367705.

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, 1319234 + ... + 1319397.

It is an arithmetic number, because the mean of its divisors is an integer number (41558454).

Almost surely, 2^216367742 is an apocalyptic number.

216367742 is a deficient number, since it is larger than the sum of its proper divisors (116099890).

216367742 is a wasteful number, since it uses less digits than its factorization.

216367742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638674.

The product of its digits is 84672, while the sum is 38.

The square root of 216367742 is about 14709.4439731759. The cubic root of 216367742 is about 600.3403087986.

The spelling of 216367742 in words is "two hundred sixteen million, three hundred sixty-seven thousand, seven hundred forty-two".