200785620 has 96 divisors (see below), whose sum is σ = 646103808. Its totient is φ = 45637632.

The previous prime is 200785609. The next prime is 200785621. The reversal of 200785620 is 26587002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200785621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79822 + ... + 82298.

It is an arithmetic number, because the mean of its divisors is an integer number (6730248).

Almost surely, 2^200785620 is an apocalyptic number.

200785620 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 200785620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323051904).

200785620 is an abundant number, since it is smaller than the sum of its proper divisors (445318188).

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

200785620 is a wasteful number, since it uses less digits than its factorization.

200785620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 200785620 is about 14169.8842620538. The cubic root of 200785620 is about 585.5682694854.

The spelling of 200785620 in words is "two hundred million, seven hundred eighty-five thousand, six hundred twenty".