2453421 has 8 divisors (see below), whose sum is σ = 3305344. Its totient is φ = 1618560.

The previous prime is 2453419. The next prime is 2453431. The reversal of 2453421 is 1243542.

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

It is not a de Polignac number, because 2453421 - 2¹ = 2453419 is a prime.

It is a Duffinian number.

2453421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2453401) 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, 3925 + ... + 4506.

It is an arithmetic number, because the mean of its divisors is an integer number (413168).

2^2453421 is an apocalyptic number.

It is an amenable number.

2453421 is a deficient number, since it is larger than the sum of its proper divisors (851923).

2453421 is an equidigital number, since it uses as much as digits as its factorization.

2453421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8531.

The product of its digits is 960, while the sum is 21.

The square root of 2453421 is about 1566.3400014045. The cubic root of 2453421 is about 134.8726920549.

Adding to 2453421 its reverse (1243542), we get a palindrome (3696963).

The spelling of 2453421 in words is "two million, four hundred fifty-three thousand, four hundred twenty-one".