4747861440 has 448 divisors, whose sum is σ = 19809561600. Its totient is φ = 1047416832.

The previous prime is 4747861409. The next prime is 4747861453. The reversal of 4747861440 is 441687474.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (448).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1752567 + ... + 1755273.

Almost surely, 2^4747861440 is an apocalyptic number.

4747861440 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 4747861440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9904780800).

4747861440 is an abundant number, since it is smaller than the sum of its proper divisors (15061700160).

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

4747861440 is a wasteful number, since it uses less digits than its factorization.

4747861440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The square root of 4747861440 is about 68904.7272688892. The cubic root of 4747861440 is about 1680.7353923329.

The spelling of 4747861440 in words is "four billion, seven hundred forty-seven million, eight hundred sixty-one thousand, four hundred forty".