1423345 has 16 divisors (see below), whose sum is σ = 2130048. Its totient is φ = 887040.

The previous prime is 1423339. The next prime is 1423361. The reversal of 1423345 is 5433241.

It is not a de Polignac number, because 1423345 - 2⁹ = 1422833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1464 + ... + 2233.

It is an arithmetic number, because the mean of its divisors is an integer number (133128).

2^1423345 is an apocalyptic number.

It is an amenable number.

1423345 is a deficient number, since it is larger than the sum of its proper divisors (706703).

1423345 is a wasteful number, since it uses less digits than its factorization.

1423345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720.

The product of its digits is 1440, while the sum is 22.

The square root of 1423345 is about 1193.0402340240. The cubic root of 1423345 is about 112.4872742807.

Adding to 1423345 its reverse (5433241), we get a palindrome (6856586).

The spelling of 1423345 in words is "one million, four hundred twenty-three thousand, three hundred forty-five".