20426200 has 96 divisors (see below), whose sum is σ = 50621760. Its totient is φ = 7654400.

The previous prime is 20426191. The next prime is 20426201. The reversal of 20426200 is 262402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20426201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385374 + ... + 385426.

It is an arithmetic number, because the mean of its divisors is an integer number (527310).

Almost surely, 2^20426200 is an apocalyptic number.

20426200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20426200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25310880).

20426200 is an abundant number, since it is smaller than the sum of its proper divisors (30195560).

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

20426200 is a wasteful number, since it uses less digits than its factorization.

20426200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20426200 is about 4519.5353743499. The cubic root of 20426200 is about 273.3563666227.

Adding to 20426200 its reverse (262402), we get a palindrome (20688602).

The spelling of 20426200 in words is "twenty million, four hundred twenty-six thousand, two hundred".