275640018 has 16 divisors (see below), whose sum is σ = 551444736. Its totient is φ = 91852560.

The previous prime is 275639999. The next prime is 275640037. The reversal of 275640018 is 810046572.

It is an interprime number because it is at equal distance from previous prime (275639999) and next prime (275640037).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30780 + ... + 38712.

It is an arithmetic number, because the mean of its divisors is an integer number (34465296).

Almost surely, 2^275640018 is an apocalyptic number.

275640018 is an abundant number, since it is smaller than the sum of its proper divisors (275804718).

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

275640018 is a wasteful number, since it uses less digits than its factorization.

275640018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13729.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 275640018 is about 16602.4100057793. The cubic root of 275640018 is about 650.7998185833.

The spelling of 275640018 in words is "two hundred seventy-five million, six hundred forty thousand, eighteen".