306889148 has 6 divisors (see below), whose sum is σ = 537056016. Its totient is φ = 153444572.

The previous prime is 306889147. The next prime is 306889157. The reversal of 306889148 is 841988603.

306889148 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×306889148³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306889147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38361140 + ... + 38361147.

It is an arithmetic number, because the mean of its divisors is an integer number (89509336).

Almost surely, 2^306889148 is an apocalyptic number.

It is an amenable number.

306889148 is a deficient number, since it is larger than the sum of its proper divisors (230166868).

306889148 is a wasteful number, since it uses less digits than its factorization.

306889148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76722291 (or 76722289 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 306889148 is about 17518.2518534242. The cubic root of 306889148 is about 674.5184662572.

The spelling of 306889148 in words is "three hundred six million, eight hundred eighty-nine thousand, one hundred forty-eight".