1423441 has 2 divisors, whose sum is σ = 1423442. Its totient is φ = 1423440.

The previous prime is 1423439. The next prime is 1423451. The reversal of 1423441 is 1443241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1345600 + 77841 = 1160^2 + 279^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423441 - 2¹ = 1423439 is a prime.

Together with 1423439, it forms a pair of twin primes.

It is equal to p₁₀₈₇₃₀ and since 1423441 and 108730 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1423451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711720 + 711721.

It is an arithmetic number, because the mean of its divisors is an integer number (711721).

2^1423441 is an apocalyptic number.

It is an amenable number.

1423441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423441 is an equidigital number, since it uses as much as digits as its factorization.

1423441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 19.

The square root of 1423441 is about 1193.0804666912. The cubic root of 1423441 is about 112.4898031910.

Adding to 1423441 its reverse (1443241), we get a palindrome (2866682).

The spelling of 1423441 in words is "one million, four hundred twenty-three thousand, four hundred forty-one".