2439273 has 4 divisors (see below), whose sum is σ = 3252368. Its totient is φ = 1626180.

The previous prime is 2439263. The next prime is 2439293. The reversal of 2439273 is 3729342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2439273 - 2⁴ = 2439257 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2439273.

It is not an unprimeable number, because it can be changed into a prime (2439263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406543 + ... + 406548.

It is an arithmetic number, because the mean of its divisors is an integer number (813092).

2^2439273 is an apocalyptic number.

It is an amenable number.

2439273 is a deficient number, since it is larger than the sum of its proper divisors (813095).

2439273 is an equidigital number, since it uses as much as digits as its factorization.

2439273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813094.

The product of its digits is 9072, while the sum is 30.

The square root of 2439273 is about 1561.8172108157. The cubic root of 2439273 is about 134.6129379440.

The spelling of 2439273 in words is "two million, four hundred thirty-nine thousand, two hundred seventy-three".