200540320 has 24 divisors (see below), whose sum is σ = 473776884. Its totient is φ = 80216064.

The previous prime is 200540311. The next prime is 200540321. The reversal of 200540320 is 23045002.

It can be written as a sum of positive squares in 2 ways, for example, as 189007504 + 11532816 = 13748^2 + 3396^2 .

It is a super-5 number, since 5×200540320⁵ (a number of 43 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 200540294 and 200540303.

It is not an unprimeable number, because it can be changed into a prime (200540321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626529 + ... + 626848.

Almost surely, 2^200540320 is an apocalyptic number.

200540320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200540320 is an abundant number, since it is smaller than the sum of its proper divisors (273236564).

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

200540320 is a wasteful number, since it uses less digits than its factorization.

200540320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253392 (or 1253384 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 200540320 is about 14161.2259356314. The cubic root of 200540320 is about 585.3297091887.

Adding to 200540320 its reverse (23045002), we get a palindrome (223585322).

The spelling of 200540320 in words is "two hundred million, five hundred forty thousand, three hundred twenty".