4547423640 has 64 divisors (see below), whose sum is σ = 13683605760. Its totient is φ = 1208972160.

The previous prime is 4547423609. The next prime is 4547423641. The reversal of 4547423640 is 463247454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4547423641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17524 + ... + 96963.

It is an arithmetic number, because the mean of its divisors is an integer number (213806340).

Almost surely, 2^4547423640 is an apocalyptic number.

4547423640 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 4547423640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6841802880).

4547423640 is an abundant number, since it is smaller than the sum of its proper divisors (9136182120).

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

4547423640 is a wasteful number, since it uses less digits than its factorization.

4547423640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114832 (or 114828 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 39.

The square root of 4547423640 is about 67434.5878611266. The cubic root of 4547423640 is about 1656.7429774199.

The spelling of 4547423640 in words is "four billion, five hundred forty-seven million, four hundred twenty-three thousand, six hundred forty".