20330434 has 4 divisors (see below), whose sum is σ = 30495654. Its totient is φ = 10165216.

The previous prime is 20330411. The next prime is 20330467. The reversal of 20330434 is 43403302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43403302 = 2 ⋅21701651.

It can be written as a sum of positive squares in only one way, i.e., 17598025 + 2732409 = 4195^2 + 1653^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082607 + ... + 5082610.

Almost surely, 2^20330434 is an apocalyptic number.

20330434 is a deficient number, since it is larger than the sum of its proper divisors (10165220).

20330434 is a wasteful number, since it uses less digits than its factorization.

20330434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10165219.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 20330434 is about 4508.9282540311. The cubic root of 20330434 is about 272.9284967957.

Adding to 20330434 its reverse (43403302), we get a palindrome (63733736).

The spelling of 20330434 in words is "twenty million, three hundred thirty thousand, four hundred thirty-four".