732638243 has 4 divisors (see below), whose sum is σ = 744648768. Its totient is φ = 720627720.

The previous prime is 732638227. The next prime is 732638317. The reversal of 732638243 is 342836237.

732638243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 732638243 - 2⁴ = 732638227 is a prime.

It is a super-2 number, since 2×732638243² = 1073517590212254098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 732638197 and 732638206.

It is not an unprimeable number, because it can be changed into a prime (732638843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6005171 + ... + 6005292.

It is an arithmetic number, because the mean of its divisors is an integer number (186162192).

Almost surely, 2^732638243 is an apocalyptic number.

732638243 is a deficient number, since it is larger than the sum of its proper divisors (12010525).

732638243 is a wasteful number, since it uses less digits than its factorization.

732638243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12010524.

The product of its digits is 145152, while the sum is 38.

The square root of 732638243 is about 27067.2910170190. The cubic root of 732638243 is about 901.4947354848.

The spelling of 732638243 in words is "seven hundred thirty-two million, six hundred thirty-eight thousand, two hundred forty-three".