1405206222 has 48 divisors (see below), whose sum is σ = 3277309392. Its totient is φ = 400498560.

The previous prime is 1405206221. The next prime is 1405206241. The reversal of 1405206222 is 2226025041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1405206192 and 1405206201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405206221) 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, 118098 + ... + 129450.

It is an arithmetic number, because the mean of its divisors is an integer number (68277279).

Almost surely, 2^1405206222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1405206222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638654696).

1405206222 is an abundant number, since it is smaller than the sum of its proper divisors (1872103170).

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

1405206222 is a wasteful number, since it uses less digits than its factorization.

1405206222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11793 (or 11786 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1405206222 is about 37486.0803765878. The cubic root of 1405206222 is about 1120.0739274119.

The spelling of 1405206222 in words is "one billion, four hundred five million, two hundred six thousand, two hundred twenty-two".