272406 has 16 divisors (see below), whose sum is σ = 552384. Its totient is φ = 89544.

The previous prime is 272399. The next prime is 272407. The reversal of 272406 is 604272.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272407) by changing a digit.

272406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (34524).

2²⁷²⁴⁰⁶ is an apocalyptic number.

272406 is an abundant number, since it is smaller than the sum of its proper divisors (279978).

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

272406 is a wasteful number, since it uses less digits than its factorization.

272406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 272406 is about 521.9252820088. The cubic root of 272406 is about 64.8244573127.

Adding to 272406 its reverse (604272), we get a palindrome (876678).

The spelling of 272406 in words is "two hundred seventy-two thousand, four hundred six".