4985978420 has 24 divisors (see below), whose sum is σ = 10478657448. Its totient is φ = 1992848000.

The previous prime is 4985978419. The next prime is 4985978483. The reversal of 4985978420 is 248795894.

It can be written as a sum of positive squares in 4 ways, for example, as 864595216 + 4121383204 = 29404^2 + 64198^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69791 + ... + 121830.

It is an arithmetic number, because the mean of its divisors is an integer number (436610727).

Almost surely, 2^4985978420 is an apocalyptic number.

It is an amenable number.

4985978420 is an abundant number, since it is smaller than the sum of its proper divisors (5492679028).

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

4985978420 is a wasteful number, since it uses less digits than its factorization.

4985978420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192931 (or 192929 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 56.

The square root of 4985978420 is about 70611.4609677494. The cubic root of 4985978420 is about 1708.3760125341.

The spelling of 4985978420 in words is "four billion, nine hundred eighty-five million, nine hundred seventy-eight thousand, four hundred twenty".