404420922 has 24 divisors (see below), whose sum is σ = 927789876. Its totient is φ = 126877056.

The previous prime is 404420893. The next prime is 404420923. The reversal of 404420922 is 229024404.

It can be written as a sum of positive squares in 2 ways, for example, as 403648281 + 772641 = 20091^2 + 879^2 .

It is not an unprimeable number, because it can be changed into a prime (404420923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660513 + ... + 661124.

Almost surely, 2^404420922 is an apocalyptic number.

404420922 is an abundant number, since it is smaller than the sum of its proper divisors (523368954).

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

404420922 is a wasteful number, since it uses less digits than its factorization.

404420922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321662 (or 1321659 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 404420922 is about 20110.2193424139. The cubic root of 404420922 is about 739.5108296192.

The spelling of 404420922 in words is "four hundred four million, four hundred twenty thousand, nine hundred twenty-two".