216498204 has 96 divisors (see below), whose sum is σ = 619375680. Its totient is φ = 64972800.

The previous prime is 216498193. The next prime is 216498209. The reversal of 216498204 is 402894612.

216498204 is a `hidden beast` number, since 2 + 1 + 649 + 8 + 2 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216498209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55684 + ... + 59444.

It is an arithmetic number, because the mean of its divisors is an integer number (6451830).

Almost surely, 2^216498204 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 216498204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309687840).

216498204 is an abundant number, since it is smaller than the sum of its proper divisors (402877476).

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

216498204 is a wasteful number, since it uses less digits than its factorization.

216498204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 216498204 is about 14713.8779388712. The cubic root of 216498204 is about 600.4609457909.

The spelling of 216498204 in words is "two hundred sixteen million, four hundred ninety-eight thousand, two hundred four".