200640828 has 48 divisors (see below), whose sum is σ = 485170560. Its totient is φ = 64494144.

The previous prime is 200640827. The next prime is 200640829. The reversal of 200640828 is 828046002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (200640827) and next prime (200640829).

It is a junction number, because it is equal to n+sod(n) for n = 200640795 and 200640804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200640827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34851 + ... + 40197.

It is an arithmetic number, because the mean of its divisors is an integer number (10107720).

Almost surely, 2^200640828 is an apocalyptic number.

It is an amenable number.

200640828 is an abundant number, since it is smaller than the sum of its proper divisors (284529732).

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

200640828 is a wasteful number, since it uses less digits than its factorization.

200640828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5466 (or 5464 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 200640828 is about 14164.7741951646. The cubic root of 200640828 is about 585.4274792080.

The spelling of 200640828 in words is "two hundred million, six hundred forty thousand, eight hundred twenty-eight".