20030473 has 8 divisors (see below), whose sum is σ = 20357568. Its totient is φ = 19705584.

The previous prime is 20030467. The next prime is 20030477. The reversal of 20030473 is 37403002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20030473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20030473.

It is not an unprimeable number, because it can be changed into a prime (20030477) 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, 30636 + ... + 31282.

It is an arithmetic number, because the mean of its divisors is an integer number (2544696).

Almost surely, 2^20030473 is an apocalyptic number.

It is an amenable number.

20030473 is a deficient number, since it is larger than the sum of its proper divisors (327095).

20030473 is an equidigital number, since it uses as much as digits as its factorization.

20030473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103.

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

The square root of 20030473 is about 4475.5416431981. The cubic root of 20030473 is about 271.5795524482.

Adding to 20030473 its reverse (37403002), we get a palindrome (57433475).

It can be divided in two parts, 20030 and 473, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20030473 in words is "twenty million, thirty thousand, four hundred seventy-three".