745891188 has 48 divisors (see below), whose sum is σ = 2037565824. Its totient is φ = 207912960.

The previous prime is 745891171. The next prime is 745891231. The reversal of 745891188 is 881198547.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 745891188.

It is a congruent number.

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, 104845 + ... + 111732.

It is an arithmetic number, because the mean of its divisors is an integer number (42449288).

Almost surely, 2^745891188 is an apocalyptic number.

It is an amenable number.

745891188 is an abundant number, since it is smaller than the sum of its proper divisors (1291674636).

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

745891188 is a wasteful number, since it uses less digits than its factorization.

745891188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216632 (or 216630 counting only the distinct ones).

The product of its digits is 645120, while the sum is 51.

The square root of 745891188 is about 27311.0085496673. The cubic root of 745891188 is about 906.8981002215.

The spelling of 745891188 in words is "seven hundred forty-five million, eight hundred ninety-one thousand, one hundred eighty-eight".