275696988 has 48 divisors (see below), whose sum is σ = 738931200. Its totient is φ = 78369984.

The previous prime is 275696987. The next prime is 275696999. The reversal of 275696988 is 889696572.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275696987) 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, 8470 + ... + 24962.

It is an arithmetic number, because the mean of its divisors is an integer number (15394400).

Almost surely, 2^275696988 is an apocalyptic number.

275696988 is a gapful number since it is divisible by the number (28) 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 275696988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369465600).

275696988 is an abundant number, since it is smaller than the sum of its proper divisors (463234212).

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

275696988 is a wasteful number, since it uses less digits than its factorization.

275696988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16706 (or 16704 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 60.

The square root of 275696988 is about 16604.1256319025. The cubic root of 275696988 is about 650.8446518310.

The spelling of 275696988 in words is "two hundred seventy-five million, six hundred ninety-six thousand, nine hundred eighty-eight".