20363800 has 48 divisors (see below), whose sum is σ = 48992400. Its totient is φ = 7862400.

The previous prime is 20363743. The next prime is 20363851. The reversal of 20363800 is 836302.

It is a super-3 number, since 3×20363800³ (a number of 23 digits) contains 333 as substring.

It is a congruent 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, 4045 + ... + 7555.

It is an arithmetic number, because the mean of its divisors is an integer number (1020675).

Almost surely, 2^20363800 is an apocalyptic number.

20363800 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 20363800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24496200).

20363800 is an abundant number, since it is smaller than the sum of its proper divisors (28628600).

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

20363800 is a wasteful number, since it uses less digits than its factorization.

20363800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20363800 is about 4512.6267295224. The cubic root of 20363800 is about 273.0777238925.

The spelling of 20363800 in words is "twenty million, three hundred sixty-three thousand, eight hundred".