216285874 has 8 divisors (see below), whose sum is σ = 370775808. Its totient is φ = 92693940.

The previous prime is 216285851. The next prime is 216285877. The reversal of 216285874 is 478582612.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 216285874.

It is not an unprimeable number, because it can be changed into a prime (216285877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7724482 + ... + 7724509.

It is an arithmetic number, because the mean of its divisors is an integer number (46346976).

Almost surely, 2^216285874 is an apocalyptic number.

216285874 is a deficient number, since it is larger than the sum of its proper divisors (154489934).

216285874 is a wasteful number, since it uses less digits than its factorization.

216285874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15449000.

The product of its digits is 215040, while the sum is 43.

The square root of 216285874 is about 14706.6608718635. The cubic root of 216285874 is about 600.2645814588.

The spelling of 216285874 in words is "two hundred sixteen million, two hundred eighty-five thousand, eight hundred seventy-four".