105489270 has 64 divisors (see below), whose sum is σ = 293552640. Its totient is φ = 26905824.

The previous prime is 105489259. The next prime is 105489271. The reversal of 105489270 is 72984501.

105489270 is a `hidden beast` number, since 105 + 489 + 2 + 70 = 666.

It is a super-2 number, since 2×105489270² = 22255972170265800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105489271) 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, 2284 + ... + 14703.

It is an arithmetic number, because the mean of its divisors is an integer number (4586760).

Almost surely, 2^105489270 is an apocalyptic number.

105489270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 105489270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146776320).

105489270 is an abundant number, since it is smaller than the sum of its proper divisors (188063370).

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

105489270 is a wasteful number, since it uses less digits than its factorization.

105489270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17026 (or 17020 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 105489270 is about 10270.7969505779. The cubic root of 105489270 is about 472.5010330035.

The spelling of 105489270 in words is "one hundred five million, four hundred eighty-nine thousand, two hundred seventy".