275483880 has 384 divisors, whose sum is σ = 1100736000. Its totient is φ = 59609088.

The previous prime is 275483867. The next prime is 275483893. The reversal of 275483880 is 88384572.

275483880 is a `hidden beast` number, since 27 + 548 + 3 + 8 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (275483867) and next prime (275483893).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2839992 + ... + 2840088.

It is an arithmetic number, because the mean of its divisors is an integer number (2866500).

Almost surely, 2^275483880 is an apocalyptic number.

275483880 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 275483880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550368000).

275483880 is an abundant number, since it is smaller than the sum of its proper divisors (825252120).

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

275483880 is a wasteful number, since it uses less digits than its factorization.

275483880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 275483880 is about 16597.7070705565. The cubic root of 275483880 is about 650.6769121737.

The spelling of 275483880 in words is "two hundred seventy-five million, four hundred eighty-three thousand, eight hundred eighty".