275490018 has 32 divisors (see below), whose sum is σ = 613912320. Its totient is φ = 91573200.

The previous prime is 275490001. The next prime is 275490023. The reversal of 275490018 is 810094572.

It is a Curzon 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, 12868 + ... + 26768.

It is an arithmetic number, because the mean of its divisors is an integer number (19184760).

Almost surely, 2^275490018 is an apocalyptic number.

275490018 is an abundant number, since it is smaller than the sum of its proper divisors (338422302).

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

275490018 is a wasteful number, since it uses less digits than its factorization.

275490018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14279 (or 14273 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 275490018 is about 16597.8919745852. The cubic root of 275490018 is about 650.6817446709.

The spelling of 275490018 in words is "two hundred seventy-five million, four hundred ninety thousand, eighteen".