216041364 has 192 divisors, whose sum is σ = 708986880. Its totient is φ = 55261440.

The previous prime is 216041347. The next prime is 216041393. The reversal of 216041364 is 463140612.

216041364 = T₂₂₄₀ + T₂₂₄₁ + ... + T₂₃₂₂.

216041364 is a `hidden beast` number, since 21 + 604 + 1 + 36 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 690072 + ... + 690384.

It is an arithmetic number, because the mean of its divisors is an integer number (3692640).

Almost surely, 2^216041364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216041364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354493440).

216041364 is an abundant number, since it is smaller than the sum of its proper divisors (492945516).

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

216041364 is a wasteful number, since it uses less digits than its factorization.

216041364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 216041364 is about 14698.3456211915. The cubic root of 216041364 is about 600.0382975554.

Adding to 216041364 its reverse (463140612), we get a palindrome (679181976).

The spelling of 216041364 in words is "two hundred sixteen million, forty-one thousand, three hundred sixty-four".