745205808 has 40 divisors (see below), whose sum is σ = 1991502000. Its totient is φ = 239835904.

The previous prime is 745205803. The next prime is 745205831. The reversal of 745205808 is 808502547.

It is not an unprimeable number, because it can be changed into a prime (745205803) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 266283 + ... + 269066.

It is an arithmetic number, because the mean of its divisors is an integer number (49787550).

Almost surely, 2^745205808 is an apocalyptic number.

It is an amenable number.

745205808 is an abundant number, since it is smaller than the sum of its proper divisors (1246296192).

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

745205808 is a wasteful number, since it uses less digits than its factorization.

745205808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535389 (or 535383 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 745205808 is about 27298.4579784280. The cubic root of 745205808 is about 906.6202400776.

The spelling of 745205808 in words is "seven hundred forty-five million, two hundred five thousand, eight hundred eight".