275885980 has 48 divisors (see below), whose sum is σ = 590544864. Its totient is φ = 108241920.

The previous prime is 275885977. The next prime is 275885983. The reversal of 275885980 is 89588572.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (275885977) and next prime (275885983).

It is a super-2 number, since 2×275885980² = 152226147921120800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275885983) 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, 339775 + ... + 340585.

It is an arithmetic number, because the mean of its divisors is an integer number (12303018).

Almost surely, 2^275885980 is an apocalyptic number.

275885980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275885980 is an abundant number, since it is smaller than the sum of its proper divisors (314658884).

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

275885980 is a wasteful number, since it uses less digits than its factorization.

275885980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 52.

The square root of 275885980 is about 16609.8157726087. The cubic root of 275885980 is about 650.9933372135.

The spelling of 275885980 in words is "two hundred seventy-five million, eight hundred eighty-five thousand, nine hundred eighty".