270420 has 24 divisors (see below), whose sum is σ = 757344. Its totient is φ = 72096.

The previous prime is 270407. The next prime is 270421. The reversal of 270420 is 24072.

270420 = T₂₅₆ + T₂₅₇ + ... + T₂₆₃.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 270420.

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 270420.

It is not an unprimeable number, because it can be changed into a prime (270421) by changing a digit.

270420 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2194 + ... + 2313.

It is an arithmetic number, because the mean of its divisors is an integer number (31556).

2²⁷⁰⁴²⁰ is an apocalyptic number.

270420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

270420 is an abundant number, since it is smaller than the sum of its proper divisors (486924).

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

270420 is a wasteful number, since it uses less digits than its factorization.

270420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519 (or 4517 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 270420 is about 520.0192304136. The cubic root of 270420 is about 64.6665367671. Note that the first 3 decimals are identical.

Adding to 270420 its reverse (24072), we get a palindrome (294492).

The spelling of 270420 in words is "two hundred seventy thousand, four hundred twenty", and thus it is an iban number.