406222566 has 16 divisors (see below), whose sum is σ = 812775600. Its totient is φ = 135352448.

The previous prime is 406222559. The next prime is 406222571. The reversal of 406222566 is 665222604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3970 + ... + 28778.

It is an arithmetic number, because the mean of its divisors is an integer number (50798475).

Almost surely, 2^406222566 is an apocalyptic number.

406222566 is an abundant number, since it is smaller than the sum of its proper divisors (406553034).

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

406222566 is a wasteful number, since it uses less digits than its factorization.

406222566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27543.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 406222566 is about 20154.9638054748. The cubic root of 406222566 is about 740.6073453179.

The spelling of 406222566 in words is "four hundred six million, two hundred twenty-two thousand, five hundred sixty-six".