209027952 has 100 divisors (see below), whose sum is σ = 691444336. Its totient is φ = 59719680.

The previous prime is 209027927. The next prime is 209027953. The reversal of 209027952 is 259720902.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209027953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2449 + ... + 20592.

Almost surely, 2^209027952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 209027952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345722168).

209027952 is an abundant number, since it is smaller than the sum of its proper divisors (482416384).

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

209027952 is a wasteful number, since it uses less digits than its factorization.

209027952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23068 (or 23053 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 209027952 is about 14457.7990026145. The cubic root of 209027952 is about 593.4736690593.

The spelling of 209027952 in words is "two hundred nine million, twenty-seven thousand, nine hundred fifty-two".