200646420 has 48 divisors (see below), whose sum is σ = 605028480. Its totient is φ = 49389696.

The previous prime is 200646419. The next prime is 200646421. The reversal of 200646420 is 24646002.

It is an interprime number because it is at equal distance from previous prime (200646419) and next prime (200646421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200646421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127840 + ... + 129399.

It is an arithmetic number, because the mean of its divisors is an integer number (12604760).

Almost surely, 2^200646420 is an apocalyptic number.

200646420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200646420 is an abundant number, since it is smaller than the sum of its proper divisors (404382060).

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

200646420 is a wasteful number, since it uses less digits than its factorization.

200646420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257264 (or 257262 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 200646420 is about 14164.9715848638. The cubic root of 200646420 is about 585.4329179150.

The spelling of 200646420 in words is "two hundred million, six hundred forty-six thousand, four hundred twenty".