756306242 has 4 divisors (see below), whose sum is σ = 1134459366. Its totient is φ = 378153120.

The previous prime is 756306241. The next prime is 756306259. The reversal of 756306242 is 242603657.

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

It can be written as a sum of positive squares in only one way, i.e., 611127841 + 145178401 = 24721^2 + 12049^2 .

It is not an unprimeable number, because it can be changed into a prime (756306241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189076559 + ... + 189076562.

Almost surely, 2^756306242 is an apocalyptic number.

756306242 is a deficient number, since it is larger than the sum of its proper divisors (378153124).

756306242 is a wasteful number, since it uses less digits than its factorization.

756306242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378153123.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 756306242 is about 27501.0225628066. The cubic root of 756306242 is about 911.0996817138.

Adding to 756306242 its reverse (242603657), we get a palindrome (998909899).

The spelling of 756306242 in words is "seven hundred fifty-six million, three hundred six thousand, two hundred forty-two".