404140336 has 30 divisors (see below), whose sum is σ = 824949060. Its totient is φ = 191268864.

The previous prime is 404140277. The next prime is 404140349. The reversal of 404140336 is 633041404.

It is a happy number.

It is a super-2 number, since 2×404140336² = 326658822364385792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404140336.

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 5 ways as a sum of consecutive naturals, for example, 349936 + ... + 351088.

It is an arithmetic number, because the mean of its divisors is an integer number (27498302).

Almost surely, 2^404140336 is an apocalyptic number.

It is an amenable number.

404140336 is an abundant number, since it is smaller than the sum of its proper divisors (420808724).

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

404140336 is an equidigital number, since it uses as much as digits as its factorization.

404140336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 404140336 is about 20103.2419276096. The cubic root of 404140336 is about 739.3397666008.

The spelling of 404140336 in words is "four hundred four million, one hundred forty thousand, three hundred thirty-six".