745452289 has 8 divisors (see below), whose sum is σ = 801383040. Its totient is φ = 691191216.

The previous prime is 745452263. The next prime is 745452307. The reversal of 745452289 is 982254547.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745452289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745452689) 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, 416494 + ... + 418279.

It is an arithmetic number, because the mean of its divisors is an integer number (100172880).

Almost surely, 2^745452289 is an apocalyptic number.

It is an amenable number.

745452289 is a deficient number, since it is larger than the sum of its proper divisors (55930751).

745452289 is a wasteful number, since it uses less digits than its factorization.

745452289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834839.

The product of its digits is 806400, while the sum is 46.

The square root of 745452289 is about 27302.9721642168. The cubic root of 745452289 is about 906.7201856354.

The spelling of 745452289 in words is "seven hundred forty-five million, four hundred fifty-two thousand, two hundred eighty-nine".