922227840 has 192 divisors, whose sum is σ = 3294977400. Its totient is φ = 237404160.

The previous prime is 922227827. The next prime is 922227841. The reversal of 922227840 is 48722229.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 658230336 + 263997504 = 25656^2 + 16248^2 .

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 922227795 and 922227804.

It is not an unprimeable number, because it can be changed into a prime (922227841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164280 + ... + 169800.

Almost surely, 2^922227840 is an apocalyptic number.

922227840 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 922227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1647488700).

922227840 is an abundant number, since it is smaller than the sum of its proper divisors (2372749560).

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

922227840 is a wasteful number, since it uses less digits than its factorization.

922227840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5575 (or 5560 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 922227840 is about 30368.2044250232. The cubic root of 922227840 is about 973.3732558008.

The spelling of 922227840 in words is "nine hundred twenty-two million, two hundred twenty-seven thousand, eight hundred forty".