275998980 has 24 divisors (see below), whose sum is σ = 772797312. Its totient is φ = 73599712.

The previous prime is 275998979. The next prime is 275998981. The reversal of 275998980 is 89899572.

It is an interprime number because it is at equal distance from previous prime (275998979) and next prime (275998981).

It is a super-2 number, since 2×275998980² = 152350873922080800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 275998980.

It is not an unprimeable number, because it can be changed into a prime (275998981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2299932 + ... + 2300051.

It is an arithmetic number, because the mean of its divisors is an integer number (32199888).

Almost surely, 2^275998980 is an apocalyptic number.

275998980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275998980 is an abundant number, since it is smaller than the sum of its proper divisors (496798332).

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

275998980 is a wasteful number, since it uses less digits than its factorization.

275998980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4599995 (or 4599993 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 57.

The square root of 275998980 is about 16613.2170274153. The cubic root of 275998980 is about 651.0822050929.

The spelling of 275998980 in words is "two hundred seventy-five million, nine hundred ninety-eight thousand, nine hundred eighty".