1426443745 has 4 divisors (see below), whose sum is σ = 1711732500. Its totient is φ = 1141154992.

The previous prime is 1426443731. The next prime is 1426443763. The reversal of 1426443745 is 5473446241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 356303376 + 1070140369 = 18876^2 + 32713^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426443745 - 2⁵ = 1426443713 is a prime.

It is a super-3 number, since 3×1426443745³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1426443698 and 1426443707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142644370 + ... + 142644379.

It is an arithmetic number, because the mean of its divisors is an integer number (427933125).

Almost surely, 2^1426443745 is an apocalyptic number.

It is an amenable number.

1426443745 is a deficient number, since it is larger than the sum of its proper divisors (285288755).

1426443745 is an equidigital number, since it uses as much as digits as its factorization.

1426443745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285288754.

The product of its digits is 322560, while the sum is 40.

The square root of 1426443745 is about 37768.2902048795. The cubic root of 1426443745 is about 1125.6884661655.

Adding to 1426443745 its reverse (5473446241), we get a palindrome (6899889986).

The spelling of 1426443745 in words is "one billion, four hundred twenty-six million, four hundred forty-three thousand, seven hundred forty-five".