745008242 has 32 divisors (see below), whose sum is σ = 1248920640. Its totient is φ = 330454080.

The previous prime is 745008241. The next prime is 745008269. The reversal of 745008242 is 242800547.

It is a junction number, because it is equal to n+sod(n) for n = 745008199 and 745008208.

It is not an unprimeable number, because it can be changed into a prime (745008241) 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, 158348 + ... + 162984.

It is an arithmetic number, because the mean of its divisors is an integer number (39028770).

Almost surely, 2^745008242 is an apocalyptic number.

745008242 is a deficient number, since it is larger than the sum of its proper divisors (503912398).

745008242 is a wasteful number, since it uses less digits than its factorization.

745008242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4826.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 745008242 is about 27294.8391092529. The cubic root of 745008242 is about 906.5401131454.

Adding to 745008242 its reverse (242800547), we get a palindrome (987808789).

The spelling of 745008242 in words is "seven hundred forty-five million, eight thousand, two hundred forty-two".