20603369 has 8 divisors (see below), whose sum is σ = 21384000. Its totient is φ = 19827472.

The previous prime is 20603357. The next prime is 20603389. The reversal of 20603369 is 96330602.

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

It is a cyclic number.

It is not a de Polignac number, because 20603369 - 2¹⁶ = 20537833 is a prime.

It is a super-2 number, since 2×20603369² = 848997628300322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20603309) 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 in 7 ways as a sum of consecutive naturals, for example, 9422 + ... + 11400.

It is an arithmetic number, because the mean of its divisors is an integer number (2673000).

Almost surely, 2^20603369 is an apocalyptic number.

20603369 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

20603369 is a deficient number, since it is larger than the sum of its proper divisors (780631).

20603369 is a wasteful number, since it uses less digits than its factorization.

20603369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 20603369 is about 4539.0934116848. The cubic root of 20603369 is about 274.1444218835.

The spelling of 20603369 in words is "twenty million, six hundred three thousand, three hundred sixty-nine".