3516821226 has 80 divisors (see below), whose sum is σ = 8562850560. Its totient is φ = 1074720960.

The previous prime is 3516821221. The next prime is 3516821239. The reversal of 3516821226 is 6221286153.

3516821226 is a `hidden beast` number, since 351 + 6 + 82 + 1 + 226 = 666.

It is not an unprimeable number, because it can be changed into a prime (3516821221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 76990 + ... + 113846.

It is an arithmetic number, because the mean of its divisors is an integer number (107035632).

Almost surely, 2^3516821226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3516821226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4281425280).

3516821226 is an abundant number, since it is smaller than the sum of its proper divisors (5046029334).

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

3516821226 is a wasteful number, since it uses less digits than its factorization.

3516821226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36921 (or 36912 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 3516821226 is about 59302.7927335636. The cubic root of 3516821226 is about 1520.7229400930.

The spelling of 3516821226 in words is "three billion, five hundred sixteen million, eight hundred twenty-one thousand, two hundred twenty-six".