4988744640 has 280 divisors, whose sum is σ = 19360207152. Its totient is φ = 1209323520.

The previous prime is 4988744603. The next prime is 4988744647. The reversal of 4988744640 is 464478894.

4988744640 is a `hidden beast` number, since 498 + 8 + 74 + 46 + 40 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988744647) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 276372 + ... + 293868.

Almost surely, 2^4988744640 is an apocalyptic number.

4988744640 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 4988744640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9680103576).

4988744640 is an abundant number, since it is smaller than the sum of its proper divisors (14371462512).

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

4988744640 is a wasteful number, since it uses less digits than its factorization.

4988744640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17537 (or 17518 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The square root of 4988744640 is about 70631.0458651152. The cubic root of 4988744640 is about 1708.6918897012.

The spelling of 4988744640 in words is "four billion, nine hundred eighty-eight million, seven hundred forty-four thousand, six hundred forty".