306303772 has 6 divisors (see below), whose sum is σ = 536031608. Its totient is φ = 153151884.

The previous prime is 306303761. The next prime is 306303779. The reversal of 306303772 is 277303603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306303779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38287968 + ... + 38287975.

Almost surely, 2^306303772 is an apocalyptic number.

It is an amenable number.

306303772 is a deficient number, since it is larger than the sum of its proper divisors (229727836).

306303772 is a wasteful number, since it uses less digits than its factorization.

306303772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76575947 (or 76575945 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 31.

The square root of 306303772 is about 17501.5362754245. The cubic root of 306303772 is about 674.0893229861.

The spelling of 306303772 in words is "three hundred six million, three hundred three thousand, seven hundred seventy-two".