404478922 has 8 divisors (see below), whose sum is σ = 616664772. Its totient is φ = 198924000.

The previous prime is 404478887. The next prime is 404478959. The reversal of 404478922 is 229874404.

It can be written as a sum of positive squares in 2 ways, for example, as 291077721 + 113401201 = 17061^2 + 10649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×404478922³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657579 + ... + 1657822.

Almost surely, 2^404478922 is an apocalyptic number.

404478922 is a deficient number, since it is larger than the sum of its proper divisors (212185850).

404478922 is a wasteful number, since it uses less digits than its factorization.

404478922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315464.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 404478922 is about 20111.6613436086. The cubic root of 404478922 is about 739.5461802284.

The spelling of 404478922 in words is "four hundred four million, four hundred seventy-eight thousand, nine hundred twenty-two".