406122822 has 120 divisors (see below), whose sum is σ = 1088808336. Its totient is φ = 110826144.

The previous prime is 406122793. The next prime is 406122823. The reversal of 406122822 is 228221604.

It is a happy number.

406122822 is a `hidden beast` number, since 4 + 0 + 612 + 28 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406122823) 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 59 ways as a sum of consecutive naturals, for example, 599548 + ... + 600224.

Almost surely, 2^406122822 is an apocalyptic number.

406122822 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 406122822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544404168).

406122822 is an abundant number, since it is smaller than the sum of its proper divisors (682685514).

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

406122822 is a wasteful number, since it uses less digits than its factorization.

406122822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 406122822 is about 20152.4892258996. The cubic root of 406122822 is about 740.5467240459.

It can be divided in two parts, 40612 and 2822, that added together give a palindrome (43434).

The spelling of 406122822 in words is "four hundred six million, one hundred twenty-two thousand, eight hundred twenty-two".