2428378 has 4 divisors (see below), whose sum is σ = 3642570. Its totient is φ = 1214188.

The previous prime is 2428369. The next prime is 2428379. The reversal of 2428378 is 8738242.

2428378 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 can be written as a sum of positive squares in only one way, i.e., 1734489 + 693889 = 1317^2 + 833^2 .

It is a d-powerful number, because it can be written as 2¹¹ + 4⁴ + 2¹³ + 8 + 3¹³ + 7⁷ + 8 .

It is not an unprimeable number, because it can be changed into a prime (2428379) 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 as a sum of consecutive naturals, namely, 607093 + ... + 607096.

2^2428378 is an apocalyptic number.

2428378 is a deficient number, since it is larger than the sum of its proper divisors (1214192).

2428378 is a wasteful number, since it uses less digits than its factorization.

2428378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214191.

The product of its digits is 21504, while the sum is 34.

The square root of 2428378 is about 1558.3253832239. The cubic root of 2428378 is about 134.4122228231.

The spelling of 2428378 in words is "two million, four hundred twenty-eight thousand, three hundred seventy-eight".