921343152 has 80 divisors (see below), whose sum is σ = 2538587520. Its totient is φ = 286934016.

The previous prime is 921343133. The next prime is 921343211. The reversal of 921343152 is 251343129.

921343152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109363 + ... + 117485.

It is an arithmetic number, because the mean of its divisors is an integer number (31732344).

Almost surely, 2^921343152 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 921343152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269293760).

921343152 is an abundant number, since it is smaller than the sum of its proper divisors (1617244368).

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

921343152 is a wasteful number, since it uses less digits than its factorization.

921343152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8290 (or 8284 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 921343152 is about 30353.6349058889. The cubic root of 921343152 is about 973.0619057172.

The spelling of 921343152 in words is "nine hundred twenty-one million, three hundred forty-three thousand, one hundred fifty-two".