404880386 has 8 divisors (see below), whose sum is σ = 639284880. Its totient is φ = 191785428.

The previous prime is 404880379. The next prime is 404880401. The reversal of 404880386 is 683088404.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5327336 + ... + 5327411.

It is an arithmetic number, because the mean of its divisors is an integer number (79910610).

Almost surely, 2^404880386 is an apocalyptic number.

404880386 is a deficient number, since it is larger than the sum of its proper divisors (234404494).

404880386 is a wasteful number, since it uses less digits than its factorization.

404880386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10654768.

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 404880386 is about 20121.6397443151. The cubic root of 404880386 is about 739.7907772282.

The spelling of 404880386 in words is "four hundred four million, eight hundred eighty thousand, three hundred eighty-six".