766228306 has 8 divisors (see below), whose sum is σ = 1149559884. Its totient is φ = 383041680.

The previous prime is 766228303. The next prime is 766228313. The reversal of 766228306 is 603822667.

It can be written as a sum of positive squares in 2 ways, for example, as 679905625 + 86322681 = 26075^2 + 9291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (766228303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21885 + ... + 44848.

Almost surely, 2^766228306 is an apocalyptic number.

766228306 is a deficient number, since it is larger than the sum of its proper divisors (383331578).

766228306 is a wasteful number, since it uses less digits than its factorization.

766228306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72476.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 766228306 is about 27680.8292144582. The cubic root of 766228306 is about 915.0666562368.

The spelling of 766228306 in words is "seven hundred sixty-six million, two hundred twenty-eight thousand, three hundred six".