921923632 has 80 divisors (see below), whose sum is σ = 2150656000. Its totient is φ = 382294080.

The previous prime is 921923609. The next prime is 921923633. The reversal of 921923632 is 236329129.

921923632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 921923591 and 921923600.

It is not an unprimeable number, because it can be changed into a prime (921923633) 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, 167419 + ... + 172837.

It is an arithmetic number, because the mean of its divisors is an integer number (26883200).

Almost surely, 2^921923632 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 921923632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075328000).

921923632 is an abundant number, since it is smaller than the sum of its proper divisors (1228732368).

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

921923632 is a wasteful number, since it uses less digits than its factorization.

921923632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479 (or 5459 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 921923632 is about 30363.1953522682. The cubic root of 921923632 is about 973.2662177195.

The spelling of 921923632 in words is "nine hundred twenty-one million, nine hundred twenty-three thousand, six hundred thirty-two".