200320020 has 96 divisors (see below), whose sum is σ = 625430400. Its totient is φ = 53229312.

The previous prime is 200320013. The next prime is 200320049. The reversal of 200320020 is 20023002.

It is a super-2 number, since 2×200320020² = 80256220825600800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200319984 and 200320011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220407 + ... + 221313.

It is an arithmetic number, because the mean of its divisors is an integer number (6514900).

Almost surely, 2^200320020 is an apocalyptic number.

200320020 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 200320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312715200).

200320020 is an abundant number, since it is smaller than the sum of its proper divisors (425110380).

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

200320020 is a wasteful number, since it uses less digits than its factorization.

200320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 200320020 is about 14153.4455169051. The cubic root of 200320020 is about 585.1152961443.

Adding to 200320020 its reverse (20023002), we get a palindrome (220343022).

The spelling of 200320020 in words is "two hundred million, three hundred twenty thousand, twenty".