3638062216 has 8 divisors (see below), whose sum is σ = 6821366670. Its totient is φ = 1819031104.

The previous prime is 3638062187. The next prime is 3638062217. The reversal of 3638062216 is 6122608363.

It can be written as a sum of positive squares in only one way, i.e., 3617541316 + 20520900 = 60146^2 + 4530^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3638062217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227378881 + ... + 227378896.

Almost surely, 2^3638062216 is an apocalyptic number.

It is an amenable number.

3638062216 is a deficient number, since it is larger than the sum of its proper divisors (3183304454).

3638062216 is a wasteful number, since it uses less digits than its factorization.

3638062216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454757783 (or 454757779 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 3638062216 is about 60316.3511495846. The cubic root of 3638062216 is about 1538.0013167355.

It can be divided in two parts, 36380 and 62216, that added together give a square (98596 = 314²).

The spelling of 3638062216 in words is "three billion, six hundred thirty-eight million, sixty-two thousand, two hundred sixteen".