216222048 has 240 divisors, whose sum is σ = 770593824. Its totient is φ = 58060800.

The previous prime is 216222023. The next prime is 216222059. The reversal of 216222048 is 840222612.

It is a happy number.

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 39 ways as a sum of consecutive naturals, for example, 308098 + ... + 308798.

Almost surely, 2^216222048 is an apocalyptic number.

216222048 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 216222048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385296912).

216222048 is an abundant number, since it is smaller than the sum of its proper divisors (554371776).

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

216222048 is a wasteful number, since it uses less digits than its factorization.

216222048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 216222048 is about 14704.4907426269. The cubic root of 216222048 is about 600.2055295879.

The spelling of 216222048 in words is "two hundred sixteen million, two hundred twenty-two thousand, forty-eight".