1423355643 has 6 divisors (see below), whose sum is σ = 2055958164. Its totient is φ = 948903756.

The previous prime is 1423355611. The next prime is 1423355663. The reversal of 1423355643 is 3465533241.

1423355643 is a `hidden beast` number, since 1 + 4 + 2 + 3 + 3 + 5 + 5 + 643 = 666.

It is not a de Polignac number, because 1423355643 - 2⁵ = 1423355611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1423355598 and 1423355607.

It is not an unprimeable number, because it can be changed into a prime (1423355663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79075305 + ... + 79075322.

It is an arithmetic number, because the mean of its divisors is an integer number (342659694).

Almost surely, 2^1423355643 is an apocalyptic number.

1423355643 is a deficient number, since it is larger than the sum of its proper divisors (632602521).

1423355643 is a wasteful number, since it uses less digits than its factorization.

1423355643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158150633 (or 158150630 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 1423355643 is about 37727.3858490089. The cubic root of 1423355643 is about 1124.8755465291.

Adding to 1423355643 its reverse (3465533241), we get a palindrome (4888888884).

The spelling of 1423355643 in words is "one billion, four hundred twenty-three million, three hundred fifty-five thousand, six hundred forty-three".