765918242 has 4 divisors (see below), whose sum is σ = 1148877366. Its totient is φ = 382959120.

The previous prime is 765918227. The next prime is 765918277. The reversal of 765918242 is 242819567.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242819567 = 37 ⋅6562691.

It can be written as a sum of positive squares in only one way, i.e., 696379321 + 69538921 = 26389^2 + 8339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 765918193 and 765918202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191479559 + ... + 191479562.

Almost surely, 2^765918242 is an apocalyptic number.

765918242 is a deficient number, since it is larger than the sum of its proper divisors (382959124).

765918242 is a wasteful number, since it uses less digits than its factorization.

765918242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382959123.

The product of its digits is 241920, while the sum is 44.

The square root of 765918242 is about 27675.2279484741. The cubic root of 765918242 is about 914.9432084751.

The spelling of 765918242 in words is "seven hundred sixty-five million, nine hundred eighteen thousand, two hundred forty-two".