2385421 has 8 divisors (see below), whose sum is σ = 2480184. Its totient is φ = 2292480.

The previous prime is 2385349. The next prime is 2385433. The reversal of 2385421 is 1245832.

It can be written as a sum of positive squares in 4 ways, for example, as 44521 + 2340900 = 211^2 + 1530^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2385421 - 2⁷ = 2385293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2385451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2595 + ... + 3391.

It is an arithmetic number, because the mean of its divisors is an integer number (310023).

2^2385421 is an apocalyptic number.

It is an amenable number.

2385421 is a deficient number, since it is larger than the sum of its proper divisors (94763).

2385421 is an equidigital number, since it uses as much as digits as its factorization.

2385421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911.

The product of its digits is 1920, while the sum is 25.

The square root of 2385421 is about 1544.4808189162. The cubic root of 2385421 is about 133.6149374635.

The spelling of 2385421 in words is "two million, three hundred eighty-five thousand, four hundred twenty-one".