404626646622 has 64 divisors (see below), whose sum is σ = 897548428800. Its totient is φ = 120585072000.

The previous prime is 404626646609. The next prime is 404626646759. The reversal of 404626646622 is 226646626404.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 789543 + ... + 1196925.

It is an arithmetic number, because the mean of its divisors is an integer number (14024194200).

Almost surely, 2^404626646622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404626646622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448774214400).

404626646622 is an abundant number, since it is smaller than the sum of its proper divisors (492921782178).

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

404626646622 is a wasteful number, since it uses less digits than its factorization.

404626646622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407649.

The product of its (nonzero) digits is 3981312, while the sum is 48.

The spelling of 404626646622 in words is "four hundred four billion, six hundred twenty-six million, six hundred forty-six thousand, six hundred twenty-two".