20126800 has 60 divisors (see below), whose sum is σ = 49141696. Its totient is φ = 7920000.

The previous prime is 20126761. The next prime is 20126801. The reversal of 20126800 is 862102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26425 + ... + 27175.

Almost surely, 2^20126800 is an apocalyptic number.

20126800 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 20126800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24570848).

20126800 is an abundant number, since it is smaller than the sum of its proper divisors (29014896).

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

20126800 is a wasteful number, since it uses less digits than its factorization.

20126800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20126800 is about 4486.2902269024. The cubic root of 20126800 is about 272.0142005274.

Adding to 20126800 its reverse (862102), we get a palindrome (20988902).

The spelling of 20126800 in words is "twenty million, one hundred twenty-six thousand, eight hundred".