20730035 has 8 divisors (see below), whose sum is σ = 25041696. Its totient is φ = 16473600.

The previous prime is 20730011. The next prime is 20730037. The reversal of 20730035 is 53003702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20730035 - 2¹⁰ = 20729011 is a prime.

It is a super-2 number, since 2×20730035² = 859468702202450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20729989 and 20730016.

It is not an unprimeable number, because it can be changed into a prime (20730037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12974 + ... + 14483.

It is an arithmetic number, because the mean of its divisors is an integer number (3130212).

Almost surely, 2^20730035 is an apocalyptic number.

20730035 is a deficient number, since it is larger than the sum of its proper divisors (4311661).

20730035 is a wasteful number, since it uses less digits than its factorization.

20730035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27613.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 20730035 is about 4553.0248187331. The cubic root of 20730035 is about 274.7050722433.

Adding to 20730035 its reverse (53003702), we get a palindrome (73733737).

The spelling of 20730035 in words is "twenty million, seven hundred thirty thousand, thirty-five".