20332413 has 12 divisors (see below), whose sum is σ = 30915040. Its totient is φ = 12841416.

The previous prime is 20332409. The next prime is 20332439. The reversal of 20332413 is 31423302.

It is not a de Polignac number, because 20332413 - 2² = 20332409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59281 + ... + 59622.

Almost surely, 2^20332413 is an apocalyptic number.

It is an amenable number.

20332413 is a deficient number, since it is larger than the sum of its proper divisors (10582627).

20332413 is a wasteful number, since it uses less digits than its factorization.

20332413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118928 (or 118925 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20332413 is about 4509.1477021717. The cubic root of 20332413 is about 272.9373522874.

Adding to 20332413 its reverse (31423302), we get a palindrome (51755715).

The spelling of 20332413 in words is "twenty million, three hundred thirty-two thousand, four hundred thirteen".