4947663240 has 384 divisors, whose sum is σ = 18177868800. Its totient is φ = 1158727680.

The previous prime is 4947663223. The next prime is 4947663263. The reversal of 4947663240 is 423667494.

It is a happy number.

4947663240 is a `hidden beast` number, since 4 + 9 + 4 + 7 + 6 + 632 + 4 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9720106 + ... + 9720614.

It is an arithmetic number, because the mean of its divisors is an integer number (47338200).

Almost surely, 2^4947663240 is an apocalyptic number.

4947663240 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 4947663240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9088934400).

4947663240 is an abundant number, since it is smaller than the sum of its proper divisors (13230205560).

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

4947663240 is a wasteful number, since it uses less digits than its factorization.

4947663240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 4947663240 is about 70339.6278068060. The cubic root of 4947663240 is about 1703.9887009103.

The spelling of 4947663240 in words is "four billion, nine hundred forty-seven million, six hundred sixty-three thousand, two hundred forty".