405430232 has 8 divisors (see below), whose sum is σ = 760181700. Its totient is φ = 202715112.

The previous prime is 405430211. The next prime is 405430243. The reversal of 405430232 is 232034504.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 405430198 and 405430207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25339382 + ... + 25339397.

Almost surely, 2^405430232 is an apocalyptic number.

It is an amenable number.

405430232 is a deficient number, since it is larger than the sum of its proper divisors (354751468).

405430232 is a wasteful number, since it uses less digits than its factorization.

405430232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50678785 (or 50678781 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 405430232 is about 20135.2981601962. The cubic root of 405430232 is about 740.1255155976.

Adding to 405430232 its reverse (232034504), we get a palindrome (637464736).

The spelling of 405430232 in words is "four hundred five million, four hundred thirty thousand, two hundred thirty-two".