2866401 has 8 divisors (see below), whose sum is σ = 4246560. Its totient is φ = 1910916.

The previous prime is 2866363. The next prime is 2866403. The reversal of 2866401 is 1046682.

It is not a de Polignac number, because 2866401 - 2¹³ = 2858209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 106163 = 2866401 / (2 + 8 + 6 + 6 + 4 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (2866403) 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, 53055 + ... + 53108.

It is an arithmetic number, because the mean of its divisors is an integer number (530820).

2^2866401 is an apocalyptic number.

It is an amenable number.

2866401 is a deficient number, since it is larger than the sum of its proper divisors (1380159).

2866401 is a wasteful number, since it uses less digits than its factorization.

2866401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106172 (or 106166 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2866401 is about 1693.0448901314. The cubic root of 2866401 is about 142.0514427117.

The spelling of 2866401 in words is "two million, eight hundred sixty-six thousand, four hundred one".