745686546 has 32 divisors (see below), whose sum is σ = 1628073216. Its totient is φ = 225810000.

The previous prime is 745686533. The next prime is 745686547. The reversal of 745686546 is 645686547.

It is not an unprimeable number, because it can be changed into a prime (745686547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124521 + ... + 130371.

It is an arithmetic number, because the mean of its divisors is an integer number (50877288).

Almost surely, 2^745686546 is an apocalyptic number.

745686546 is an abundant number, since it is smaller than the sum of its proper divisors (882386670).

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

745686546 is a wasteful number, since it uses less digits than its factorization.

745686546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798.

The product of its digits is 4838400, while the sum is 51.

The square root of 745686546 is about 27307.2617814383. The cubic root of 745686546 is about 906.8151540674.

Subtracting from 745686546 its reverse (645686547), we obtain a palindrome (99999999).

The spelling of 745686546 in words is "seven hundred forty-five million, six hundred eighty-six thousand, five hundred forty-six".