2353421 has 6 divisors (see below), whose sum is σ = 2737710. Its totient is φ = 2017176.

The previous prime is 2353411. The next prime is 2353423. The reversal of 2353421 is 1243532.

It is a happy number.

2353421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1999396 + 354025 = 1414^2 + 595^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2353421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2353393 and 2353402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2353423) 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 5 ways as a sum of consecutive naturals, for example, 23966 + ... + 24063.

It is an arithmetic number, because the mean of its divisors is an integer number (456285).

2^2353421 is an apocalyptic number.

It is an amenable number.

2353421 is a deficient number, since it is larger than the sum of its proper divisors (384289).

2353421 is an equidigital number, since it uses as much as digits as its factorization.

2353421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48043 (or 48036 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 2353421 is about 1534.0863730573. The cubic root of 2353421 is about 133.0147721358.

Adding to 2353421 its reverse (1243532), we get a palindrome (3596953).

The spelling of 2353421 in words is "two million, three hundred fifty-three thousand, four hundred twenty-one".