921954432 has 64 divisors (see below), whose sum is σ = 2798798400. Its totient is φ = 263414784.

The previous prime is 921954409. The next prime is 921954433. The reversal of 921954432 is 234459129.

921954432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (921954433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168807 + ... + 174182.

It is an arithmetic number, because the mean of its divisors is an integer number (43731225).

Almost surely, 2^921954432 is an apocalyptic number.

It is an amenable number.

921954432 is an abundant number, since it is smaller than the sum of its proper divisors (1876843968).

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

921954432 is a wasteful number, since it uses less digits than its factorization.

921954432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343013 (or 343001 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 921954432 is about 30363.7025410275. The cubic root of 921954432 is about 973.2770560235.

The spelling of 921954432 in words is "nine hundred twenty-one million, nine hundred fifty-four thousand, four hundred thirty-two".