4921240812 has 12 divisors (see below), whose sum is σ = 11482895256. Its totient is φ = 1640413600.

The previous prime is 4921240789. The next prime is 4921240813. The reversal of 4921240812 is 2180421294.

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

It is a super-2 number, since 2×4921240812² = 48437222259388838688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4921240813) 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, 205051689 + ... + 205051712.

It is an arithmetic number, because the mean of its divisors is an integer number (956907938).

Almost surely, 2^4921240812 is an apocalyptic number.

It is an amenable number.

4921240812 is an abundant number, since it is smaller than the sum of its proper divisors (6561654444).

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

4921240812 is a wasteful number, since it uses less digits than its factorization.

4921240812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410103408 (or 410103406 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 4921240812 is about 70151.5560198061. The cubic root of 4921240812 is about 1700.9499664035.

The spelling of 4921240812 in words is "four billion, nine hundred twenty-one million, two hundred forty thousand, eight hundred twelve".