216469204 has 48 divisors (see below), whose sum is σ = 460028800. Its totient is φ = 87060096.

The previous prime is 216469199. The next prime is 216469213. The reversal of 216469204 is 402964612.

It is a self number, because there is not a number n which added to its sum of digits gives 216469204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56122 + ... + 59854.

Almost surely, 2^216469204 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 216469204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230014400).

216469204 is an abundant number, since it is smaller than the sum of its proper divisors (243559596).

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

216469204 is a wasteful number, since it uses less digits than its factorization.

216469204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872 (or 3870 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 216469204 is about 14712.8924416649. The cubic root of 216469204 is about 600.4341339519.

The spelling of 216469204 in words is "two hundred sixteen million, four hundred sixty-nine thousand, two hundred four".