200387820 has 24 divisors (see below), whose sum is σ = 561086064. Its totient is φ = 53436736.

The previous prime is 200387807. The next prime is 200387833. The reversal of 200387820 is 28783002.

200387820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (200387807) and next prime (200387833).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1669839 + ... + 1669958.

It is an arithmetic number, because the mean of its divisors is an integer number (23378586).

Almost surely, 2^200387820 is an apocalyptic number.

200387820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200387820 is an abundant number, since it is smaller than the sum of its proper divisors (360698244).

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

200387820 is a wasteful number, since it uses less digits than its factorization.

200387820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339809 (or 3339807 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 200387820 is about 14155.8404907656. The cubic root of 200387820 is about 585.1813011002.

The spelling of 200387820 in words is "two hundred million, three hundred eighty-seven thousand, eight hundred twenty".