216038070 has 128 divisors (see below), whose sum is σ = 607150080. Its totient is φ = 54587520.

The previous prime is 216038059. The next prime is 216038077. The reversal of 216038070 is 70830612.

216038070 is a `hidden beast` number, since 216 + 0 + 380 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216038077) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 443367 + ... + 443853.

It is an arithmetic number, because the mean of its divisors is an integer number (4743360).

Almost surely, 2^216038070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216038070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303575040).

216038070 is an abundant number, since it is smaller than the sum of its proper divisors (391112010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216038070 is a wasteful number, since it uses less digits than its factorization.

216038070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 216038070 is about 14698.2335673373. The cubic root of 216038070 is about 600.0352479293.

Adding to 216038070 its reverse (70830612), we get a palindrome (286868682).

The spelling of 216038070 in words is "two hundred sixteen million, thirty-eight thousand, seventy".