1345642608 has 20 divisors (see below), whose sum is σ = 3476243528. Its totient is φ = 448547520.

The previous prime is 1345642589. The next prime is 1345642609. The reversal of 1345642608 is 8062465431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345642609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14017063 + ... + 14017158.

Almost surely, 2^1345642608 is an apocalyptic number.

It is an amenable number.

1345642608 is an abundant number, since it is smaller than the sum of its proper divisors (2130600920).

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

1345642608 is a wasteful number, since it uses less digits than its factorization.

1345642608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28034232 (or 28034226 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 1345642608 is about 36683.0016220047. The cubic root of 1345642608 is about 1104.0190739196.

The spelling of 1345642608 in words is "one billion, three hundred forty-five million, six hundred forty-two thousand, six hundred eight".