4912221808 has 160 divisors (see below), whose sum is σ = 11486264832. Its totient is φ = 2012774400.

The previous prime is 4912221799. The next prime is 4912221851. The reversal of 4912221808 is 8081222194.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4493710 + ... + 4494802.

Almost surely, 2^4912221808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4912221808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5743132416).

4912221808 is an abundant number, since it is smaller than the sum of its proper divisors (6574043024).

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

4912221808 is a wasteful number, since it uses less digits than its factorization.

4912221808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 4912221808 is about 70087.2442602789. The cubic root of 4912221808 is about 1699.9102383978.

The spelling of 4912221808 in words is "four billion, nine hundred twelve million, two hundred twenty-one thousand, eight hundred eight".