20330514 has 20 divisors (see below), whose sum is σ = 45555774. Its totient is φ = 6776784.

The previous prime is 20330509. The next prime is 20330539. The reversal of 20330514 is 41503302.

It can be written as a sum of positive squares in only one way, i.e., 15468489 + 4862025 = 3933^2 + 2205^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 62587 + ... + 62910.

Almost surely, 2^20330514 is an apocalyptic number.

20330514 is an abundant number, since it is smaller than the sum of its proper divisors (25225260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20330514 is a wasteful number, since it uses less digits than its factorization.

20330514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125511 (or 125502 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20330514 is about 4508.9371253101. The cubic root of 20330514 is about 272.9288547853.

Adding to 20330514 its reverse (41503302), we get a palindrome (61833816).

The spelling of 20330514 in words is "twenty million, three hundred thirty thousand, five hundred fourteen".