4921284040 has 16 divisors (see below), whose sum is σ = 11072889180. Its totient is φ = 1968513600.

The previous prime is 4921284029. The next prime is 4921284041. The reversal of 4921284040 is 404821294.

It can be written as a sum of positive squares in 2 ways, for example, as 4824969444 + 96314596 = 69462^2 + 9814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4921283987 and 4921284005.

It is not an unprimeable number, because it can be changed into a prime (4921284041) 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, 61516011 + ... + 61516090.

Almost surely, 2^4921284040 is an apocalyptic number.

4921284040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4921284040 is an abundant number, since it is smaller than the sum of its proper divisors (6151605140).

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

4921284040 is a wasteful number, since it uses less digits than its factorization.

4921284040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123032112 (or 123032108 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 4921284040 is about 70151.8641234857. The cubic root of 4921284040 is about 1700.9549467498.

The spelling of 4921284040 in words is "four billion, nine hundred twenty-one million, two hundred eighty-four thousand, forty".