4989843440 has 20 divisors (see below), whose sum is σ = 11601386184. Its totient is φ = 1995937344.

The previous prime is 4989843433. The next prime is 4989843461. The reversal of 4989843440 is 443489894.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×4989843440² = 49797075111422067200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 31186442 + ... + 31186601.

Almost surely, 2^4989843440 is an apocalyptic number.

4989843440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4989843440 is an abundant number, since it is smaller than the sum of its proper divisors (6611542744).

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

4989843440 is a wasteful number, since it uses less digits than its factorization.

4989843440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62373056 (or 62373050 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 53.

The square root of 4989843440 is about 70638.8238860189. The cubic root of 4989843440 is about 1708.8173302650.

The spelling of 4989843440 in words is "four billion, nine hundred eighty-nine million, eight hundred forty-three thousand, four hundred forty".