275223980 has 48 divisors (see below), whose sum is σ = 617851584. Its totient is φ = 102727680.

The previous prime is 275223959. The next prime is 275223989. The reversal of 275223980 is 89322572.

It is not an unprimeable number, because it can be changed into a prime (275223989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11564 + ... + 26156.

It is an arithmetic number, because the mean of its divisors is an integer number (12871908).

Almost surely, 2^275223980 is an apocalyptic number.

275223980 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 275223980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308925792).

275223980 is an abundant number, since it is smaller than the sum of its proper divisors (342627604).

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

275223980 is a wasteful number, since it uses less digits than its factorization.

275223980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14666 (or 14664 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 275223980 is about 16589.8758283478. The cubic root of 275223980 is about 650.4722248929.

The spelling of 275223980 in words is "two hundred seventy-five million, two hundred twenty-three thousand, nine hundred eighty".