1345424441 has 4 divisors (see below), whose sum is σ = 1347412452. Its totient is φ = 1343436432.

The previous prime is 1345424429. The next prime is 1345424453. The reversal of 1345424441 is 1444245431.

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

It is an interprime number because it is at equal distance from previous prime (1345424429) and next prime (1345424453).

It can be written as a sum of positive squares in 2 ways, for example, as 1260250000 + 85174441 = 35500^2 + 9229^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345424441 - 2³⁰ = 271682617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345424398 and 1345424407.

It is not an unprimeable number, because it can be changed into a prime (1345424401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992990 + ... + 994343.

It is an arithmetic number, because the mean of its divisors is an integer number (336853113).

Almost surely, 2^1345424441 is an apocalyptic number.

It is an amenable number.

1345424441 is a deficient number, since it is larger than the sum of its proper divisors (1988011).

1345424441 is an equidigital number, since it uses as much as digits as its factorization.

1345424441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988010.

The product of its digits is 30720, while the sum is 32.

The square root of 1345424441 is about 36680.0278216906. The cubic root of 1345424441 is about 1103.9594063808.

Adding to 1345424441 its reverse (1444245431), we get a palindrome (2789669872).

The spelling of 1345424441 in words is "one billion, three hundred forty-five million, four hundred twenty-four thousand, four hundred forty-one".