404635122 has 64 divisors (see below), whose sum is σ = 957052800. Its totient is φ = 126282240.

The previous prime is 404635111. The next prime is 404635123. The reversal of 404635122 is 221536404.

404635122 is a `hidden beast` number, since 4 + 0 + 4 + 635 + 1 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (404635123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192654 + ... + 194742.

It is an arithmetic number, because the mean of its divisors is an integer number (14953950).

Almost surely, 2^404635122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404635122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478526400).

404635122 is an abundant number, since it is smaller than the sum of its proper divisors (552417678).

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

404635122 is a wasteful number, since it uses less digits than its factorization.

404635122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328 (or 2322 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 404635122 is about 20115.5442879381. The cubic root of 404635122 is about 739.6413662733.

The spelling of 404635122 in words is "four hundred four million, six hundred thirty-five thousand, one hundred twenty-two".