20383000 has 128 divisors (see below), whose sum is σ = 55598400. Its totient is φ = 6912000.

The previous prime is 20382961. The next prime is 20383009. The reversal of 20383000 is 38302.

20383000 = T₁₂₅ + T₁₂₆ + ... + T₄₉₈.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20383009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186946 + ... + 187054.

Almost surely, 2^20383000 is an apocalyptic number.

20383000 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 20383000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27799200).

20383000 is an abundant number, since it is smaller than the sum of its proper divisors (35215400).

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

20383000 is a wasteful number, since it uses less digits than its factorization.

20383000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20383000 is about 4514.7535923902. The cubic root of 20383000 is about 273.1635206715.

The spelling of 20383000 in words is "twenty million, three hundred eighty-three thousand".