270389 has 12 divisors (see below), whose sum is σ = 329184. Its totient is φ = 217512.

The previous prime is 270379. The next prime is 270407. The reversal of 270389 is 983072.

270389 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 270389 - 2⁸ = 270133 is a prime.

It is a super-2 number, since 2×270389² = 146220422642, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

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 270389.

It is not an unprimeable number, because it can be changed into a prime (270329) 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, 2474 + ... + 2580.

It is an arithmetic number, because the mean of its divisors is an integer number (27432).

2²⁷⁰³⁸⁹ is an apocalyptic number.

It is an amenable number.

270389 is a deficient number, since it is larger than the sum of its proper divisors (58795).

270389 is a wasteful number, since it uses less digits than its factorization.

270389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 270389 is about 519.9894229694. The cubic root of 270389 is about 64.6640656244.

It can be divided in two parts, 27038 and 9, that multiplied together give a palindrome (243342).

The spelling of 270389 in words is "two hundred seventy thousand, three hundred eighty-nine".