216364042 has 8 divisors (see below), whose sum is σ = 326084832. Its totient is φ = 107669100.

The previous prime is 216364021. The next prime is 216364063. The reversal of 216364042 is 240463612.

It is an interprime number because it is at equal distance from previous prime (216364021) and next prime (216364063).

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 216364042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255934 + ... + 256777.

It is an arithmetic number, because the mean of its divisors is an integer number (40760604).

Almost surely, 2^216364042 is an apocalyptic number.

216364042 is a deficient number, since it is larger than the sum of its proper divisors (109720790).

216364042 is a wasteful number, since it uses less digits than its factorization.

216364042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512924.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 216364042 is about 14709.3182030983. The cubic root of 216364042 is about 600.3368867361.

The spelling of 216364042 in words is "two hundred sixteen million, three hundred sixty-four thousand, forty-two".