20363020 has 24 divisors (see below), whose sum is σ = 43465968. Its totient is φ = 8011200.

The previous prime is 20363011. The next prime is 20363023. The reversal of 20363020 is 2036302.

It is a junction number, because it is equal to n+sod(n) for n = 20362985 and 20363003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20363023) 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, 7126 + ... + 9565.

It is an arithmetic number, because the mean of its divisors is an integer number (1811082).

Almost surely, 2^20363020 is an apocalyptic number.

20363020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20363020 is an abundant number, since it is smaller than the sum of its proper divisors (23102948).

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

20363020 is a wasteful number, since it uses less digits than its factorization.

20363020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16761 (or 16759 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20363020 is about 4512.5403045291. The cubic root of 20363020 is about 273.0742372586.

Adding to 20363020 its reverse (2036302), we get a palindrome (22399322).

The spelling of 20363020 in words is "twenty million, three hundred sixty-three thousand, twenty".