9452721384 has 160 divisors (see below), whose sum is σ = 26816058720. Its totient is φ = 3123665856.

The previous prime is 9452721373. The next prime is 9452721413. The reversal of 9452721384 is 4831272549.

9452721384 is a `hidden beast` number, since 94 + 527 + 2 + 1 + 38 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27241099 + ... + 27241445.

It is an arithmetic number, because the mean of its divisors is an integer number (167600367).

Almost surely, 2^9452721384 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 9452721384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13408029360).

9452721384 is an abundant number, since it is smaller than the sum of its proper divisors (17363337336).

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

9452721384 is an equidigital number, since it uses as much as digits as its factorization.

9452721384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 525 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 9452721384 is about 97225.1067574626. The cubic root of 9452721384 is about 2114.3925462367.

The spelling of 9452721384 in words is "nine billion, four hundred fifty-two million, seven hundred twenty-one thousand, three hundred eighty-four".