200081830 has 64 divisors (see below), whose sum is σ = 411723648. Its totient is φ = 69442560.

The previous prime is 200081813. The next prime is 200081839. The reversal of 200081830 is 38180002.

200081830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×200081830² = 80065477392297800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200081839) 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, 181842 + ... + 182938.

It is an arithmetic number, because the mean of its divisors is an integer number (6433182).

Almost surely, 2^200081830 is an apocalyptic number.

200081830 is an abundant number, since it is smaller than the sum of its proper divisors (211641818).

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

200081830 is a wasteful number, since it uses less digits than its factorization.

200081830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 200081830 is about 14145.0284552559. The cubic root of 200081830 is about 584.8832942246.

The spelling of 200081830 in words is "two hundred million, eighty-one thousand, eight hundred thirty".