404040425406 has 8 divisors (see below), whose sum is σ = 808080850824. Its totient is φ = 134680141800.

The previous prime is 404040425363. The next prime is 404040425417. The reversal of 404040425406 is 604524040404.

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

404040425406 is an admirable number.

It is a super-2 number, since 2×404040425406² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 33670035445 + ... + 33670035456.

It is an arithmetic number, because the mean of its divisors is an integer number (101010106353).

Almost surely, 2^404040425406 is an apocalyptic number.

404040425406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404040425406 is a wasteful number, since it uses less digits than its factorization.

404040425406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67340070906.

The product of its (nonzero) digits is 61440, while the sum is 33.

The spelling of 404040425406 in words is "four hundred four billion, forty million, four hundred twenty-five thousand, four hundred six".