744536243 has 16 divisors (see below), whose sum is σ = 849042432. Its totient is φ = 646272000.

The previous prime is 744536239. The next prime is 744536257. The reversal of 744536243 is 342635447.

It is not a de Polignac number, because 744536243 - 2² = 744536239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 744536197 and 744536206.

It is not an unprimeable number, because it can be changed into a prime (744536263) 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, 159878 + ... + 164468.

It is an arithmetic number, because the mean of its divisors is an integer number (53065152).

Almost surely, 2^744536243 is an apocalyptic number.

744536243 is a deficient number, since it is larger than the sum of its proper divisors (104506189).

744536243 is a wasteful number, since it uses less digits than its factorization.

744536243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266.

The product of its digits is 241920, while the sum is 38.

The square root of 744536243 is about 27286.1914344967. The cubic root of 744536243 is about 906.3486269323.

The spelling of 744536243 in words is "seven hundred forty-four million, five hundred thirty-six thousand, two hundred forty-three".