405232012 has 12 divisors (see below), whose sum is σ = 715432536. Its totient is φ = 200822720.

The previous prime is 405232007. The next prime is 405232021. The reversal of 405232012 is 210232504.

It is an unprimeable number.

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, 447814 + ... + 448717.

It is an arithmetic number, because the mean of its divisors is an integer number (59619378).

Almost surely, 2^405232012 is an apocalyptic number.

It is an amenable number.

405232012 is a deficient number, since it is larger than the sum of its proper divisors (310200524).

405232012 is a wasteful number, since it uses less digits than its factorization.

405232012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896648 (or 896646 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 405232012 is about 20130.3753566594. The cubic root of 405232012 is about 740.0048770071.

Adding to 405232012 its reverse (210232504), we get a palindrome (615464516).

The spelling of 405232012 in words is "four hundred five million, two hundred thirty-two thousand, twelve".