2438646 has 32 divisors (see below), whose sum is σ = 5756928. Its totient is φ = 673920.

The previous prime is 2438629. The next prime is 2438671. The reversal of 2438646 is 6468342.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366 + ... + 2238.

It is an arithmetic number, because the mean of its divisors is an integer number (179904).

2^2438646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2438646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2878464).

2438646 is an abundant number, since it is smaller than the sum of its proper divisors (3318282).

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

2438646 is a wasteful number, since it uses less digits than its factorization.

2438646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916.

The product of its digits is 27648, while the sum is 33.

The square root of 2438646 is about 1561.6164702000. The cubic root of 2438646 is about 134.6014031486.

The spelling of 2438646 in words is "two million, four hundred thirty-eight thousand, six hundred forty-six".