2428855 has 32 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 1572480.

The previous prime is 2428787. The next prime is 2428859. The reversal of 2428855 is 5588242.

It is a de Polignac number, because none of the positive numbers 2^k-2428855 is a prime.

It is a super-2 number, since 2×2428855² = 11798673222050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2428855 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2428855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2428859) 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 31 ways as a sum of consecutive naturals, for example, 30706 + ... + 30784.

It is an arithmetic number, because the mean of its divisors is an integer number (110880).

2^2428855 is an apocalyptic number.

2428855 is a deficient number, since it is larger than the sum of its proper divisors (1119305).

2428855 is a wasteful number, since it uses less digits than its factorization.

2428855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151.

The product of its digits is 25600, while the sum is 34.

The square root of 2428855 is about 1558.4784246181. The cubic root of 2428855 is about 134.4210229952.

The spelling of 2428855 in words is "two million, four hundred twenty-eight thousand, eight hundred fifty-five".