2216630824 has 8 divisors (see below), whose sum is σ = 4156182810. Its totient is φ = 1108315408.

The previous prime is 2216630813. The next prime is 2216630831. The reversal of 2216630824 is 4280366122.

It can be written as a sum of positive squares in only one way, i.e., 1972958724 + 243672100 = 44418^2 + 15610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2216630824.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138539419 + ... + 138539434.

Almost surely, 2^2216630824 is an apocalyptic number.

It is an amenable number.

2216630824 is a deficient number, since it is larger than the sum of its proper divisors (1939551986).

2216630824 is a wasteful number, since it uses less digits than its factorization.

2216630824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277078859 (or 277078855 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 2216630824 is about 47081.1089928859. The cubic root of 2216630824 is about 1303.8604819555.

Adding to 2216630824 its reverse (4280366122), we get a palindrome (6496996946).

The spelling of 2216630824 in words is "two billion, two hundred sixteen million, six hundred thirty thousand, eight hundred twenty-four".