406122270 has 64 divisors (see below), whose sum is σ = 1025063424. Its totient is φ = 102776960.

The previous prime is 406122259. The next prime is 406122349. The reversal of 406122270 is 72221604.

It is a self number, because there is not a number n which added to its sum of digits gives 406122270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88144 + ... + 92636.

It is an arithmetic number, because the mean of its divisors is an integer number (16016616).

Almost surely, 2^406122270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406122270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512531712).

406122270 is an abundant number, since it is smaller than the sum of its proper divisors (618941154).

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

406122270 is a wasteful number, since it uses less digits than its factorization.

406122270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4657.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 406122270 is about 20152.4755303164. The cubic root of 406122270 is about 740.5463885300.

Adding to 406122270 its reverse (72221604), we get a palindrome (478343874).

The spelling of 406122270 in words is "four hundred six million, one hundred twenty-two thousand, two hundred seventy".