4989970440 has 256 divisors, whose sum is σ = 20472076800. Its totient is φ = 1052808192.

The previous prime is 4989970429. The next prime is 4989970483. The reversal of 4989970440 is 440799894.

It is a happy number.

4989970440 is a `hidden beast` number, since 49 + 8 + 99 + 70 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72894 + ... + 123666.

It is an arithmetic number, because the mean of its divisors is an integer number (79969050).

Almost surely, 2^4989970440 is an apocalyptic number.

4989970440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4989970440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10236038400).

4989970440 is an abundant number, since it is smaller than the sum of its proper divisors (15482106360).

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

4989970440 is a wasteful number, since it uses less digits than its factorization.

4989970440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50813 (or 50803 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 4989970440 is about 70639.7228193882. The cubic root of 4989970440 is about 1708.8318275776.

The spelling of 4989970440 in words is "four billion, nine hundred eighty-nine million, nine hundred seventy thousand, four hundred forty".