216104448 has 160 divisors (see below), whose sum is σ = 667814400. Its totient is φ = 60825600.

The previous prime is 216104437. The next prime is 216104501. The reversal of 216104448 is 844401612.

It is a super-2 number, since 2×216104448² = 93402264890769408, which contains 22 as substring.

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, 1085853 + ... + 1086051.

It is an arithmetic number, because the mean of its divisors is an integer number (4173840).

Almost surely, 2^216104448 is an apocalyptic number.

216104448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216104448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333907200).

216104448 is an abundant number, since it is smaller than the sum of its proper divisors (451709952).

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

216104448 is a wasteful number, since it uses less digits than its factorization.

216104448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 216104448 is about 14700.4914203573. The cubic root of 216104448 is about 600.0966955269.

The spelling of 216104448 in words is "two hundred sixteen million, one hundred four thousand, four hundred forty-eight".