2439813 has 8 divisors (see below), whose sum is σ = 3266176. Its totient is φ = 1620000.

The previous prime is 2439803. The next prime is 2439839. The reversal of 2439813 is 3189342.

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

It is not a de Polignac number, because 2439813 - 2⁵ = 2439781 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439803) 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, 688 + ... + 2313.

It is an arithmetic number, because the mean of its divisors is an integer number (408272).

2^2439813 is an apocalyptic number.

It is an amenable number.

2439813 is a deficient number, since it is larger than the sum of its proper divisors (826363).

2439813 is a wasteful number, since it uses less digits than its factorization.

2439813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275.

The product of its digits is 5184, while the sum is 30.

The square root of 2439813 is about 1561.9900767931. The cubic root of 2439813 is about 134.6228706334.

The spelling of 2439813 in words is "two million, four hundred thirty-nine thousand, eight hundred thirteen".