405052232 has 16 divisors (see below), whose sum is σ = 817894140. Its totient is φ = 186947136.

The previous prime is 405052213. The next prime is 405052267. The reversal of 405052232 is 232250504.

It can be written as a sum of positive squares in 2 ways, for example, as 372721636 + 32330596 = 19306^2 + 5686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 405052198 and 405052207.

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, 1947263 + ... + 1947470.

Almost surely, 2^405052232 is an apocalyptic number.

It is an amenable number.

405052232 is an abundant number, since it is smaller than the sum of its proper divisors (412841908).

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

405052232 is a wasteful number, since it uses less digits than its factorization.

405052232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894752 (or 3894748 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 405052232 is about 20125.9094701333. The cubic root of 405052232 is about 739.8954271514.

The spelling of 405052232 in words is "four hundred five million, fifty-two thousand, two hundred thirty-two".