749636445 has 16 divisors (see below), whose sum is σ = 1200101760. Its totient is φ = 399578304.

The previous prime is 749636429. The next prime is 749636449. The reversal of 749636445 is 544636947.

It is not a de Polignac number, because 749636445 - 2⁴ = 749636429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 749636394 and 749636403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749636449) 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 15 ways as a sum of consecutive naturals, for example, 14887 + ... + 41483.

It is an arithmetic number, because the mean of its divisors is an integer number (75006360).

Almost surely, 2^749636445 is an apocalyptic number.

It is an amenable number.

749636445 is a deficient number, since it is larger than the sum of its proper divisors (450465315).

749636445 is a wasteful number, since it uses less digits than its factorization.

749636445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28484.

The product of its digits is 2177280, while the sum is 48.

The square root of 749636445 is about 27379.4894948755. The cubic root of 749636445 is about 908.4134675162.

The spelling of 749636445 in words is "seven hundred forty-nine million, six hundred thirty-six thousand, four hundred forty-five".