2216399028 has 12 divisors (see below), whose sum is σ = 5171597760. Its totient is φ = 738799672.

The previous prime is 2216399023. The next prime is 2216399051. The reversal of 2216399028 is 8209936122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216399023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92349948 + ... + 92349971.

It is an arithmetic number, because the mean of its divisors is an integer number (430966480).

Almost surely, 2^2216399028 is an apocalyptic number.

It is an amenable number.

2216399028 is an abundant number, since it is smaller than the sum of its proper divisors (2955198732).

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

2216399028 is a wasteful number, since it uses less digits than its factorization.

2216399028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184699926 (or 184699924 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 2216399028 is about 47078.6472617895. The cubic root of 2216399028 is about 1303.8150315695.

The spelling of 2216399028 in words is "two billion, two hundred sixteen million, three hundred ninety-nine thousand, twenty-eight".