622220406 has 32 divisors (see below), whose sum is σ = 1314475008. Its totient is φ = 196045920.

The previous prime is 622220381. The next prime is 622220407. The reversal of 622220406 is 604022226.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622220407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30901 + ... + 46896.

It is an arithmetic number, because the mean of its divisors is an integer number (41077344).

Almost surely, 2^622220406 is an apocalyptic number.

622220406 is an abundant number, since it is smaller than the sum of its proper divisors (692254602).

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

622220406 is a wasteful number, since it uses less digits than its factorization.

622220406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77876.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 622220406 is about 24944.3461730309. The cubic root of 622220406 is about 853.7186126755.

The spelling of 622220406 in words is "six hundred twenty-two million, two hundred twenty thousand, four hundred six".