20265800 has 48 divisors (see below), whose sum is σ = 47608560. Its totient is φ = 8022080.

The previous prime is 20265797. The next prime is 20265821. The reversal of 20265800 is 856202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20927 + ... + 21873.

It is an arithmetic number, because the mean of its divisors is an integer number (991845).

Almost surely, 2^20265800 is an apocalyptic number.

20265800 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 20265800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23804280).

20265800 is an abundant number, since it is smaller than the sum of its proper divisors (27342760).

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

20265800 is a wasteful number, since it uses less digits than its factorization.

20265800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20265800 is about 4501.7552132474. The cubic root of 20265800 is about 272.6389606322.

The spelling of 20265800 in words is "twenty million, two hundred sixty-five thousand, eight hundred".