275188540 has 48 divisors (see below), whose sum is σ = 652186080. Its totient is φ = 96615680.

The previous prime is 275188523. The next prime is 275188559. The reversal of 275188540 is 45881572.

It is a junction number, because it is equal to n+sod(n) for n = 275188493 and 275188502.

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 15 ways as a sum of consecutive naturals, for example, 15187 + ... + 27946.

It is an arithmetic number, because the mean of its divisors is an integer number (13587210).

Almost surely, 2^275188540 is an apocalyptic number.

275188540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275188540 is an abundant number, since it is smaller than the sum of its proper divisors (376997540).

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

275188540 is a wasteful number, since it uses less digits than its factorization.

275188540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43182 (or 43180 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 275188540 is about 16588.8076726448. The cubic root of 275188540 is about 650.4443037246. Note that the first 3 decimals are identical.

The spelling of 275188540 in words is "two hundred seventy-five million, one hundred eighty-eight thousand, five hundred forty".