2428387 has 4 divisors (see below), whose sum is σ = 2615200. Its totient is φ = 2241576.

The previous prime is 2428379. The next prime is 2428403. The reversal of 2428387 is 7838242.

2428387 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 not a de Polignac number, because 2428387 - 2³ = 2428379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2428357) 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, 93387 + ... + 93412.

It is an arithmetic number, because the mean of its divisors is an integer number (653800).

2^2428387 is an apocalyptic number.

2428387 is a deficient number, since it is larger than the sum of its proper divisors (186813).

2428387 is a wasteful number, since it uses less digits than its factorization.

2428387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186812.

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

The square root of 2428387 is about 1558.3282709365. The cubic root of 2428387 is about 134.4123888747.

The spelling of 2428387 in words is "two million, four hundred twenty-eight thousand, three hundred eighty-seven".