20026320 has 40 divisors (see below), whose sum is σ = 62082336. Its totient is φ = 5340288.

The previous prime is 20026319. The next prime is 20026333. The reversal of 20026320 is 2362002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20026320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41482 + ... + 41961.

Almost surely, 2^20026320 is an apocalyptic number.

20026320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20026320 is an abundant number, since it is smaller than the sum of its proper divisors (42056016).

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

20026320 is a wasteful number, since it uses less digits than its factorization.

20026320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83459 (or 83453 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20026320 is about 4475.0776529575. The cubic root of 20026320 is about 271.5607819173.

Adding to 20026320 its reverse (2362002), we get a palindrome (22388322).

The spelling of 20026320 in words is "twenty million, twenty-six thousand, three hundred twenty".