745856398 has 8 divisors (see below), whose sum is σ = 1278610992. Its totient is φ = 319652736.

The previous prime is 745856383. The next prime is 745856399. The reversal of 745856398 is 893658547.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745856399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26637715 + ... + 26637742.

It is an arithmetic number, because the mean of its divisors is an integer number (159826374).

Almost surely, 2^745856398 is an apocalyptic number.

745856398 is a deficient number, since it is larger than the sum of its proper divisors (532754594).

745856398 is a wasteful number, since it uses less digits than its factorization.

745856398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53275466.

The product of its digits is 7257600, while the sum is 55.

The square root of 745856398 is about 27310.3716195880. The cubic root of 745856398 is about 906.8840000972.

The spelling of 745856398 in words is "seven hundred forty-five million, eight hundred fifty-six thousand, three hundred ninety-eight".