2478235 has 4 divisors (see below), whose sum is σ = 2973888. Its totient is φ = 1982584.

The previous prime is 2478221. The next prime is 2478239. The reversal of 2478235 is 5328742.

2478235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2478235 is a prime.

It is a super-2 number, since 2×2478235² = 12283297430450, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 4 + 7² + 8 + 2¹⁹ + 3⁶ + 5⁹ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2478197 and 2478206.

It is not an unprimeable number, because it can be changed into a prime (2478239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247819 + ... + 247828.

It is an arithmetic number, because the mean of its divisors is an integer number (743472).

2^2478235 is an apocalyptic number.

2478235 is a deficient number, since it is larger than the sum of its proper divisors (495653).

2478235 is an equidigital number, since it uses as much as digits as its factorization.

2478235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495652.

The product of its digits is 13440, while the sum is 31.

The square root of 2478235 is about 1574.2410870003. The cubic root of 2478235 is about 135.3258702855.

The spelling of 2478235 in words is "two million, four hundred seventy-eight thousand, two hundred thirty-five".