1345748208 has 40 divisors (see below), whose sum is σ = 3973162368. Its totient is φ = 384499392.

The previous prime is 1345748191. The next prime is 1345748279. The reversal of 1345748208 is 8028475431.

It is a super-2 number, since 2×1345748208² = 3622076478670422528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1345748208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2002266 + ... + 2002937.

Almost surely, 2^1345748208 is an apocalyptic number.

It is an amenable number.

1345748208 is an abundant number, since it is smaller than the sum of its proper divisors (2627414160).

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

1345748208 is a wasteful number, since it uses less digits than its factorization.

1345748208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005221 (or 4005215 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 1345748208 is about 36684.4409525346. The cubic root of 1345748208 is about 1104.0479526535.

The spelling of 1345748208 in words is "one billion, three hundred forty-five million, seven hundred forty-eight thousand, two hundred eight".