216341438 has 8 divisors (see below), whose sum is σ = 327384288. Its totient is φ = 107213344.

The previous prime is 216341431. The next prime is 216341453. The reversal of 216341438 is 834143612.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216341431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478406 + ... + 478857.

It is an arithmetic number, because the mean of its divisors is an integer number (40923036).

Almost surely, 2^216341438 is an apocalyptic number.

216341438 is a deficient number, since it is larger than the sum of its proper divisors (111042850).

216341438 is a wasteful number, since it uses less digits than its factorization.

216341438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957378.

The product of its digits is 13824, while the sum is 32.

The square root of 216341438 is about 14708.5498265465. The cubic root of 216341438 is about 600.3159798616.

The spelling of 216341438 in words is "two hundred sixteen million, three hundred forty-one thousand, four hundred thirty-eight".