20330074 has 4 divisors (see below), whose sum is σ = 30495114. Its totient is φ = 10165036.

The previous prime is 20330071. The next prime is 20330081. The reversal of 20330074 is 47003302.

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., 19316025 + 1014049 = 4395^2 + 1007^2 .

It is not an unprimeable number, because it can be changed into a prime (20330071) by changing a digit.

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, 5082517 + ... + 5082520.

Almost surely, 2^20330074 is an apocalyptic number.

20330074 is a deficient number, since it is larger than the sum of its proper divisors (10165040).

20330074 is a wasteful number, since it uses less digits than its factorization.

20330074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10165039.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 20330074 is about 4508.8883330595. Note that the first 3 decimals coincide. The cubic root of 20330074 is about 272.9268858309.

Adding to 20330074 its reverse (47003302), we get a palindrome (67333376).

The spelling of 20330074 in words is "twenty million, three hundred thirty thousand, seventy-four".