202161984 has 56 divisors (see below), whose sum is σ = 537301440. Its totient is φ = 67083264.

The previous prime is 202161983. The next prime is 202161997. The reversal of 202161984 is 489161202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202161983) 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, 42477 + ... + 46995.

Almost surely, 2^202161984 is an apocalyptic number.

202161984 is a gapful number since it is divisible by the number (24) 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 202161984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268650720).

202161984 is an abundant number, since it is smaller than the sum of its proper divisors (335139456).

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

202161984 is a wasteful number, since it uses less digits than its factorization.

202161984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767 (or 4757 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 202161984 is about 14218.3678388203. The cubic root of 202161984 is about 586.9032264548.

The spelling of 202161984 in words is "two hundred two million, one hundred sixty-one thousand, nine hundred eighty-four".