745938489 has 8 divisors (see below), whose sum is σ = 995722240. Its totient is φ = 496723536.

The previous prime is 745938449. The next prime is 745938503. The reversal of 745938489 is 984839547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 745938489 - 2⁹ = 745937977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745938419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139129 + ... + 144390.

It is an arithmetic number, because the mean of its divisors is an integer number (124465280).

Almost surely, 2^745938489 is an apocalyptic number.

It is an amenable number.

745938489 is a deficient number, since it is larger than the sum of its proper divisors (249783751).

745938489 is a wasteful number, since it uses less digits than its factorization.

745938489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284399.

The product of its digits is 8709120, while the sum is 57.

The square root of 745938489 is about 27311.8745054235. The cubic root of 745938489 is about 906.9172702564.

The spelling of 745938489 in words is "seven hundred forty-five million, nine hundred thirty-eight thousand, four hundred eighty-nine".