840273 has 8 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 480144.

The previous prime is 840269. The next prime is 840277. The reversal of 840273 is 372048.

It is an interprime number because it is at equal distance from previous prime (840269) and next prime (840277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 840273 - 2² = 840269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (840277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19986 + ... + 20027.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

2⁸⁴⁰²⁷³ is an apocalyptic number.

It is an amenable number.

840273 is a deficient number, since it is larger than the sum of its proper divisors (440175).

840273 is a wasteful number, since it uses less digits than its factorization.

840273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40023.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 840273 is about 916.6640606024. The cubic root of 840273 is about 94.3641001695.

The spelling of 840273 in words is "eight hundred forty thousand, two hundred seventy-three".