1423445471 has 4 divisors (see below), whose sum is σ = 1626794832. Its totient is φ = 1220096112.

The previous prime is 1423445467. The next prime is 1423445473. The reversal of 1423445471 is 1745443241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1745443241 = 9157 ⋅190613.

It is a cyclic number.

It is not a de Polignac number, because 1423445471 - 2² = 1423445467 is a prime.

It is a super-3 number, since 3×1423445471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423445473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101674670 + ... + 101674683.

It is an arithmetic number, because the mean of its divisors is an integer number (406698708).

Almost surely, 2^1423445471 is an apocalyptic number.

1423445471 is a deficient number, since it is larger than the sum of its proper divisors (203349361).

1423445471 is an equidigital number, since it uses as much as digits as its factorization.

1423445471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203349360.

The product of its digits is 53760, while the sum is 35.

The square root of 1423445471 is about 37728.5763182233. The cubic root of 1423445471 is about 1124.8992096699.

The spelling of 1423445471 in words is "one billion, four hundred twenty-three million, four hundred forty-five thousand, four hundred seventy-one".