2864538 has 16 divisors (see below), whose sum is σ = 6365760. Its totient is φ = 954828.

The previous prime is 2864527. The next prime is 2864539. The reversal of 2864538 is 8354682.

2864538 is a `hidden beast` number, since 2 + 8 + 645 + 3 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (2864539) 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, 26470 + ... + 26577.

It is an arithmetic number, because the mean of its divisors is an integer number (397860).

2^2864538 is an apocalyptic number.

2864538 is an abundant number, since it is smaller than the sum of its proper divisors (3501222).

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

2864538 is a wasteful number, since it uses less digits than its factorization.

2864538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53058 (or 53052 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 2864538 is about 1692.4946085586. The cubic root of 2864538 is about 142.0206608832.

The spelling of 2864538 in words is "two million, eight hundred sixty-four thousand, five hundred thirty-eight".