1345273408 has 28 divisors (see below), whose sum is σ = 2690563072. Its totient is φ = 667336320.

The previous prime is 1345273387. The next prime is 1345273451. The reversal of 1345273408 is 8043725431.

It is a happy number.

1345273408 is an admirable number.

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, 74628 + ... + 90883.

Almost surely, 2^1345273408 is an apocalyptic number.

It is an amenable number.

1345273408 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345273408 is a wasteful number, since it uses less digits than its factorization.

1345273408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165650 (or 165640 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 1345273408 is about 36677.9689732133. The cubic root of 1345273408 is about 1103.9180958632.

Adding to 1345273408 its reverse (8043725431), we get a palindrome (9388998839).

The spelling of 1345273408 in words is "one billion, three hundred forty-five million, two hundred seventy-three thousand, four hundred eight".