745686494 has 16 divisors (see below), whose sum is σ = 1279069056. Its totient is φ = 319392600.

The previous prime is 745686413. The next prime is 745686497. The reversal of 745686494 is 494686547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745686497) 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, 10649 + ... + 40059.

It is an arithmetic number, because the mean of its divisors is an integer number (79941816).

Almost surely, 2^745686494 is an apocalyptic number.

745686494 is a deficient number, since it is larger than the sum of its proper divisors (533382562).

745686494 is a wasteful number, since it uses less digits than its factorization.

745686494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31231.

The product of its digits is 5806080, while the sum is 53.

The square root of 745686494 is about 27307.2608293106. The cubic root of 745686494 is about 906.8151329886.

Adding to 745686494 its sum of digits (53), we get a palindrome (745686547).

The spelling of 745686494 in words is "seven hundred forty-five million, six hundred eighty-six thousand, four hundred ninety-four".