405300812 has 24 divisors (see below), whose sum is σ = 832511904. Its totient is φ = 169005312.

The previous prime is 405300803. The next prime is 405300853. The reversal of 405300812 is 218003504.

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 7 ways as a sum of consecutive naturals, for example, 194573 + ... + 196644.

It is an arithmetic number, because the mean of its divisors is an integer number (34687996).

Almost surely, 2^405300812 is an apocalyptic number.

It is an amenable number.

405300812 is an abundant number, since it is smaller than the sum of its proper divisors (427211092).

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

405300812 is a wasteful number, since it uses less digits than its factorization.

405300812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391265 (or 391263 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 405300812 is about 20132.0841444695. The cubic root of 405300812 is about 740.0467538028.

The spelling of 405300812 in words is "four hundred five million, three hundred thousand, eight hundred twelve".