922489920 has 336 divisors, whose sum is σ = 3559503168. Its totient is φ = 217313280.

The previous prime is 922489903. The next prime is 922489927. The reversal of 922489920 is 29984229.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (922489927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1171767 + ... + 1172553.

Almost surely, 2^922489920 is an apocalyptic number.

922489920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 922489920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1779751584).

922489920 is an abundant number, since it is smaller than the sum of its proper divisors (2637013248).

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

922489920 is a wasteful number, since it uses less digits than its factorization.

922489920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 922489920 is about 30372.5191579493. The cubic root of 922489920 is about 973.4654519266.

The spelling of 922489920 in words is "nine hundred twenty-two million, four hundred eighty-nine thousand, nine hundred twenty".