9422185920 has 224 divisors, whose sum is σ = 34659222528. Its totient is φ = 2124029952.

The previous prime is 9422185891. The next prime is 9422185921. The reversal of 9422185920 is 295812249.

It is a happy number.

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

It is a super-2 number, since 2×9422185920² (a number of 21 digits) contains 22 as substring.

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 (9422185921) 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, 480957 + ... + 500163.

It is an arithmetic number, because the mean of its divisors is an integer number (154728672).

Almost surely, 2^9422185920 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 9422185920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17329611264).

9422185920 is an abundant number, since it is smaller than the sum of its proper divisors (25237036608).

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

9422185920 is a wasteful number, since it uses less digits than its factorization.

9422185920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19307 (or 19297 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 9422185920 is about 97067.9448633791. The cubic root of 9422185920 is about 2112.1133576668.

The spelling of 9422185920 in words is "nine billion, four hundred twenty-two million, one hundred eighty-five thousand, nine hundred twenty".