404256046 has 8 divisors (see below), whose sum is σ = 638299080. Its totient is φ = 191489688.

The previous prime is 404256011. The next prime is 404256049. The reversal of 404256046 is 640652404.

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

It is a junction number, because it is equal to n+sod(n) for n = 404255999 and 404256017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404256049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5319121 + ... + 5319196.

It is an arithmetic number, because the mean of its divisors is an integer number (79787385).

Almost surely, 2^404256046 is an apocalyptic number.

404256046 is a deficient number, since it is larger than the sum of its proper divisors (234043034).

404256046 is a wasteful number, since it uses less digits than its factorization.

404256046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10638338.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 404256046 is about 20106.1196156792. The cubic root of 404256046 is about 739.4103203445.

The spelling of 404256046 in words is "four hundred four million, two hundred fifty-six thousand, forty-six".