2864438 has 16 divisors (see below), whose sum is σ = 4459536. Its totient is φ = 1379040.

The previous prime is 2864423. The next prime is 2864441. The reversal of 2864438 is 8344682.

It is a junction number, because it is equal to n+sod(n) for n = 2864398 and 2864407.

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 7 ways as a sum of consecutive naturals, for example, 6245 + ... + 6687.

It is an arithmetic number, because the mean of its divisors is an integer number (278721).

2^2864438 is an apocalyptic number.

2864438 is a deficient number, since it is larger than the sum of its proper divisors (1595098).

2864438 is a wasteful number, since it uses less digits than its factorization.

2864438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559.

The product of its digits is 36864, while the sum is 35.

The square root of 2864438 is about 1692.4650661092. The cubic root of 2864438 is about 142.0190082337.

It can be divided in two parts, 28644 and 38, that added together give a palindrome (28682).

The spelling of 2864438 in words is "two million, eight hundred sixty-four thousand, four hundred thirty-eight".