745668858 has 32 divisors (see below), whose sum is σ = 1722617280. Its totient is φ = 212668160.

The previous prime is 745668857. The next prime is 745668877. The reversal of 745668858 is 858866547.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 745668798 and 745668807.

It is not an unprimeable number, because it can be changed into a prime (745668853) 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 15 ways as a sum of consecutive naturals, for example, 331173 + ... + 333416.

It is an arithmetic number, because the mean of its divisors is an integer number (53831790).

Almost surely, 2^745668858 is an apocalyptic number.

745668858 is an abundant number, since it is smaller than the sum of its proper divisors (976948422).

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

745668858 is a wasteful number, since it uses less digits than its factorization.

745668858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664622.

The product of its digits is 12902400, while the sum is 57.

The square root of 745668858 is about 27306.9379096229. The cubic root of 745668858 is about 906.8079839978.

The spelling of 745668858 in words is "seven hundred forty-five million, six hundred sixty-eight thousand, eight hundred fifty-eight".