745236242 has 16 divisors (see below), whose sum is σ = 1184919192. Its totient is φ = 350311680.

The previous prime is 745236241. The next prime is 745236313. The reversal of 745236242 is 242632547.

745236242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 580858201 + 164378041 = 24101^2 + 12821^2 .

It is not an unprimeable number, because it can be changed into a prime (745236241) 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, 20348 + ... + 43640.

Almost surely, 2^745236242 is an apocalyptic number.

745236242 is a deficient number, since it is larger than the sum of its proper divisors (439682950).

745236242 is a wasteful number, since it uses less digits than its factorization.

745236242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24253.

The product of its digits is 80640, while the sum is 35.

The square root of 745236242 is about 27299.0154034903. The cubic root of 745236242 is about 906.6325819499.

Adding to 745236242 its reverse (242632547), we get a palindrome (987868789).

The spelling of 745236242 in words is "seven hundred forty-five million, two hundred thirty-six thousand, two hundred forty-two".