755866042 has 4 divisors (see below), whose sum is σ = 1133799066. Its totient is φ = 377933020.

The previous prime is 755866031. The next prime is 755866049. The reversal of 755866042 is 240668557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240668557 = 101 ⋅2382857.

It can be written as a sum of positive squares in only one way, i.e., 741418441 + 14447601 = 27229^2 + 3801^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 755866042.

It is not an unprimeable number, because it can be changed into a prime (755866049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188966509 + ... + 188966512.

Almost surely, 2^755866042 is an apocalyptic number.

755866042 is a deficient number, since it is larger than the sum of its proper divisors (377933024).

755866042 is a wasteful number, since it uses less digits than its factorization.

755866042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377933023.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 755866042 is about 27493.0180591364. The cubic root of 755866042 is about 910.9228821164.

The spelling of 755866042 in words is "seven hundred fifty-five million, eight hundred sixty-six thousand, forty-two".