272440 has 48 divisors (see below), whose sum is σ = 718200. Its totient is φ = 92736.

The previous prime is 272423. The next prime is 272449. The reversal of 272440 is 44272.

272440 = T₈₀ + T₈₁ + ... + T₁₂₈.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272449) 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, 1891 + ... + 2029.

2²⁷²⁴⁴⁰ is an apocalyptic number.

272440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359100).

272440 is an abundant number, since it is smaller than the sum of its proper divisors (445760).

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

272440 is a wasteful number, since it uses less digits than its factorization.

272440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 272440 is about 521.9578527046. The cubic root of 272440 is about 64.8271541939.

The spelling of 272440 in words is "two hundred seventy-two thousand, four hundred forty", and thus it is an iban number.