1423543456 has 24 divisors (see below), whose sum is σ = 2803466484. Its totient is φ = 711552000.

The previous prime is 1423543421. The next prime is 1423543507. The reversal of 1423543456 is 6543453241.

It can be written as a sum of positive squares in 2 ways, for example, as 1420083856 + 3459600 = 37684^2 + 1860^2 .

It is a super-2 number, since 2×1423543456² = 4052951942240847872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163206 + ... + 171706.

Almost surely, 2^1423543456 is an apocalyptic number.

1423543456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1423543456 is a deficient number, since it is larger than the sum of its proper divisors (1379923028).

1423543456 is an equidigital number, since it uses as much as digits as its factorization.

1423543456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13744 (or 13736 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 1423543456 is about 37729.8748473938. The cubic root of 1423543456 is about 1124.9250204514.

Adding to 1423543456 its reverse (6543453241), we get a palindrome (7966996697).

The spelling of 1423543456 in words is "one billion, four hundred twenty-three million, five hundred forty-three thousand, four hundred fifty-six".