4457547072 has 168 divisors, whose sum is σ = 14404644800. Its totient is φ = 1350708480.

The previous prime is 4457547049. The next prime is 4457547077. The reversal of 4457547072 is 2707457544.

4457547072 is a `hidden beast` number, since 4 + 4 + 575 + 4 + 7 + 0 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4457547077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198429 + ... + 219747.

Almost surely, 2^4457547072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4457547072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7202322400).

4457547072 is an abundant number, since it is smaller than the sum of its proper divisors (9947097728).

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

4457547072 is a wasteful number, since it uses less digits than its factorization.

4457547072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21362 (or 21335 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 45.

The square root of 4457547072 is about 66764.8640528834. The cubic root of 4457547072 is about 1645.7554906598.

The spelling of 4457547072 in words is "four billion, four hundred fifty-seven million, five hundred forty-seven thousand, seventy-two".