161884200 has 192 divisors, whose sum is σ = 542376000. Its totient is φ = 39792640.

The previous prime is 161884187. The next prime is 161884243. The reversal of 161884200 is 2488161.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 601666 + ... + 601934.

It is an arithmetic number, because the mean of its divisors is an integer number (2824875).

Almost surely, 2^161884200 is an apocalyptic number.

161884200 is a gapful number since it is divisible by the number (10) 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 161884200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271188000).

161884200 is an abundant number, since it is smaller than the sum of its proper divisors (380491800).

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

161884200 is a wasteful number, since it uses less digits than its factorization.

161884200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 161884200 is about 12723.3721945088. The cubic root of 161884200 is about 545.0062564161.

The spelling of 161884200 in words is "one hundred sixty-one million, eight hundred eighty-four thousand, two hundred".