2216299428 has 96 divisors (see below), whose sum is σ = 6577356800. Its totient is φ = 632212128.

The previous prime is 2216299411. The next prime is 2216299433. The reversal of 2216299428 is 8249926122.

2216299428 is a `hidden beast` number, since 2 + 216 + 2 + 9 + 9 + 428 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556701 + ... + 560667.

Almost surely, 2^2216299428 is an apocalyptic number.

2216299428 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 2216299428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3288678400).

2216299428 is an abundant number, since it is smaller than the sum of its proper divisors (4361057372).

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

2216299428 is a wasteful number, since it uses less digits than its factorization.

2216299428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726 (or 4718 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 2216299428 is about 47077.5894455101. The cubic root of 2216299428 is about 1303.7955011028.

The spelling of 2216299428 in words is "two billion, two hundred sixteen million, two hundred ninety-nine thousand, four hundred twenty-eight".