922729920 has 224 divisors, whose sum is σ = 3404591616. Its totient is φ = 207360000.

The previous prime is 922729919. The next prime is 922729921. The reversal of 922729920 is 29927229.

It is an interprime number because it is at equal distance from previous prime (922729919) and next prime (922729921).

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (922729921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408795 + ... + 411045.

Almost surely, 2^922729920 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 922729920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1702295808).

922729920 is an abundant number, since it is smaller than the sum of its proper divisors (2481861696).

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

922729920 is a wasteful number, since it uses less digits than its factorization.

922729920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339 (or 2329 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 922729920 is about 30376.4698409805. The cubic root of 922729920 is about 973.5498652971.

The spelling of 922729920 in words is "nine hundred twenty-two million, seven hundred twenty-nine thousand, nine hundred twenty".