2865394 has 16 divisors (see below), whose sum is σ = 4996800. Its totient is φ = 1206864.

The previous prime is 2865383. The next prime is 2865397. The reversal of 2865394 is 4935682.

It is not an unprimeable number, because it can be changed into a prime (2865397) by changing a digit.

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, 909 + ... + 2560.

It is an arithmetic number, because the mean of its divisors is an integer number (312300).

2^2865394 is an apocalyptic number.

2865394 is a deficient number, since it is larger than the sum of its proper divisors (2131406).

2865394 is a wasteful number, since it uses less digits than its factorization.

2865394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537.

The product of its digits is 51840, while the sum is 37.

The square root of 2865394 is about 1692.7474708296. The cubic root of 2865394 is about 142.0348059888.

The spelling of 2865394 in words is "two million, eight hundred sixty-five thousand, three hundred ninety-four".