270390 has 16 divisors (see below), whose sum is σ = 649008. Its totient is φ = 72096.

The previous prime is 270379. The next prime is 270407. The reversal of 270390 is 93072.

It is a super-2 number, since 2×270390² = 146221504200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 270390.

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, 4477 + ... + 4536.

It is an arithmetic number, because the mean of its divisors is an integer number (40563).

2²⁷⁰³⁹⁰ is an apocalyptic number.

270390 is an abundant number, since it is smaller than the sum of its proper divisors (378618).

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

270390 is a wasteful number, since it uses less digits than its factorization.

270390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9023.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 270390 is about 519.9903845265. The cubic root of 270390 is about 64.6641453416.

The spelling of 270390 in words is "two hundred seventy thousand, three hundred ninety".