20430412 has 12 divisors (see below), whose sum is σ = 35884240. Its totient is φ = 10177776.

The previous prime is 20430409. The next prime is 20430439. The reversal of 20430412 is 21403402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8112 + ... + 10327.

Almost surely, 2^20430412 is an apocalyptic number.

It is an amenable number.

20430412 is a deficient number, since it is larger than the sum of its proper divisors (15453828).

20430412 is a wasteful number, since it uses less digits than its factorization.

20430412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18720 (or 18718 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20430412 is about 4520.0013274334. The cubic root of 20430412 is about 273.3751545500.

Adding to 20430412 its reverse (21403402), we get a palindrome (41833814).

The spelling of 20430412 in words is "twenty million, four hundred thirty thousand, four hundred twelve".