1345565388 has 48 divisors (see below), whose sum is σ = 3221092224. Its totient is φ = 436920960.

The previous prime is 1345565371. The next prime is 1345565399. The reversal of 1345565388 is 8835655431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405231 + ... + 408537.

It is an arithmetic number, because the mean of its divisors is an integer number (67106088).

Almost surely, 2^1345565388 is an apocalyptic number.

It is an amenable number.

1345565388 is an abundant number, since it is smaller than the sum of its proper divisors (1875526836).

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

1345565388 is a wasteful number, since it uses less digits than its factorization.

1345565388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182 (or 4180 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 48.

The square root of 1345565388 is about 36681.9490758057. The cubic root of 1345565388 is about 1103.9979553890.

The spelling of 1345565388 in words is "one billion, three hundred forty-five million, five hundred sixty-five thousand, three hundred eighty-eight".