405040336 has 20 divisors (see below), whose sum is σ = 785476512. Its totient is φ = 202336736.

The previous prime is 405040331. The next prime is 405040381. The reversal of 405040336 is 633040504.

It is a self number, because there is not a number n which added to its sum of digits gives 405040336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405040331) by changing a digit.

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, 7725 + ... + 29491.

Almost surely, 2^405040336 is an apocalyptic number.

It is an amenable number.

405040336 is a deficient number, since it is larger than the sum of its proper divisors (380436176).

405040336 is a wasteful number, since it uses less digits than its factorization.

405040336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22938 (or 22932 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 405040336 is about 20125.6139285240. The cubic root of 405040336 is about 739.8881837381. Note that the first 3 decimals are identical.

The spelling of 405040336 in words is "four hundred five million, forty thousand, three hundred thirty-six".