270090 has 24 divisors (see below), whose sum is σ = 702468. Its totient is φ = 72000.

The previous prime is 270073. The next prime is 270097. The reversal of 270090 is 90072.

It can be written as a sum of positive squares in 2 ways, for example, as 269361 + 729 = 519^2 + 27^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (270097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1411 + ... + 1590.

2²⁷⁰⁰⁹⁰ is an apocalyptic number.

270090 is an abundant number, since it is smaller than the sum of its proper divisors (432378).

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

270090 is a wasteful number, since it uses less digits than its factorization.

270090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 270090 is about 519.7018375954. The cubic root of 270090 is about 64.6402213521.

Subtracting from 270090 its sum of digits (18), we obtain a palindrome (270072).

The spelling of 270090 in words is "two hundred seventy thousand, ninety".