922722840 has 320 divisors, whose sum is σ = 3518776800. Its totient is φ = 214990848.

The previous prime is 922722839. The next prime is 922722893. The reversal of 922722840 is 48227229.

It is a happy number.

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 = 922722795 and 922722804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 799704 + ... + 800856.

Almost surely, 2^922722840 is an apocalyptic number.

922722840 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 922722840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759388400).

922722840 is an abundant number, since it is smaller than the sum of its proper divisors (2596053960).

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

922722840 is a wasteful number, since it uses less digits than its factorization.

922722840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 1195 counting only the distinct ones).

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

The square root of 922722840 is about 30376.3533031863. The cubic root of 922722840 is about 973.5473753123.

The spelling of 922722840 in words is "nine hundred twenty-two million, seven hundred twenty-two thousand, eight hundred forty".