275320000 has 70 divisors (see below), whose sum is σ = 682803308. Its totient is φ = 110112000.

The previous prime is 275319983. The next prime is 275320007. The reversal of 275320000 is 23572.

It is a happy number.

It is a super-2 number, since 2×275320000² = 151602204800000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 275320000.

It is not an unprimeable number, because it can be changed into a prime (275320007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36559 + ... + 43441.

Almost surely, 2^275320000 is an apocalyptic number.

275320000 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 275320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341401654).

275320000 is an abundant number, since it is smaller than the sum of its proper divisors (407483308).

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

275320000 is an frugal number, since it uses more digits than its factorization.

275320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915 (or 6890 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 275320000 is about 16592.7695096388. The cubic root of 275320000 is about 650.5478615689.

Adding to 275320000 its reverse (23572), we get a palindrome (275343572).

The spelling of 275320000 in words is "two hundred seventy-five million, three hundred twenty thousand".