200161280 has 96 divisors (see below), whose sum is σ = 524225520. Its totient is φ = 72744960.

The previous prime is 200161261. The next prime is 200161289. The reversal of 200161280 is 82161002.

It is a super-2 number, since 2×200161280² = 80129076022476800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200161289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111752 + ... + 113528.

Almost surely, 2^200161280 is an apocalyptic number.

200161280 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 200161280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262112760).

200161280 is an abundant number, since it is smaller than the sum of its proper divisors (324064240).

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

200161280 is a wasteful number, since it uses less digits than its factorization.

200161280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 200161280 is about 14147.8365837325. The cubic root of 200161280 is about 584.9607006010.

The spelling of 200161280 in words is "two hundred million, one hundred sixty-one thousand, two hundred eighty".