1423456 has 12 divisors (see below), whose sum is σ = 2802492. Its totient is φ = 711712.

The previous prime is 1423453. The next prime is 1423463. The reversal of 1423456 is 6543241.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1423456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22210 + ... + 22273.

It is an arithmetic number, because the mean of its divisors is an integer number (233541).

2^1423456 is an apocalyptic number.

1423456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1423456 is a deficient number, since it is larger than the sum of its proper divisors (1379036).

1423456 is an equidigital number, since it uses as much as digits as its factorization.

1423456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44493 (or 44485 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 1423456 is about 1193.0867529229. The cubic root of 1423456 is about 112.4901983230.

Adding to 1423456 its reverse (6543241), we get a palindrome (7966697).

The spelling of 1423456 in words is "one million, four hundred twenty-three thousand, four hundred fifty-six".