20330458 has 4 divisors (see below), whose sum is σ = 30495690. Its totient is φ = 10165228.

The previous prime is 20330411. The next prime is 20330467. The reversal of 20330458 is 85403302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16670889 + 3659569 = 4083^2 + 1913^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082613 + ... + 5082616.

Almost surely, 2^20330458 is an apocalyptic number.

20330458 is a deficient number, since it is larger than the sum of its proper divisors (10165232).

20330458 is a wasteful number, since it uses less digits than its factorization.

20330458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10165231.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20330458 is about 4508.9309154166. The cubic root of 20330458 is about 272.9286041927.

The spelling of 20330458 in words is "twenty million, three hundred thirty thousand, four hundred fifty-eight".