2861438 has 16 divisors (see below), whose sum is σ = 4551120. Its totient is φ = 1345536.

The previous prime is 2861399. The next prime is 2861447. The reversal of 2861438 is 8341682.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9620 + ... + 9912.

It is an arithmetic number, because the mean of its divisors is an integer number (284445).

2^2861438 is an apocalyptic number.

2861438 is a deficient number, since it is larger than the sum of its proper divisors (1689682).

2861438 is a wasteful number, since it uses less digits than its factorization.

2861438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its digits is 9216, while the sum is 32.

The square root of 2861438 is about 1691.5785527134. The cubic root of 2861438 is about 141.9694108547.

The spelling of 2861438 in words is "two million, eight hundred sixty-one thousand, four hundred thirty-eight".