307412128 has 12 divisors (see below), whose sum is σ = 605217690. Its totient is φ = 153706048.

The previous prime is 307412081. The next prime is 307412143. The reversal of 307412128 is 821214703.

It can be written as a sum of positive squares in only one way, i.e., 163123984 + 144288144 = 12772^2 + 12012^2 .

It is a junction number, because it is equal to n+sod(n) for n = 307412096 and 307412105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4803283 + ... + 4803346.

Almost surely, 2^307412128 is an apocalyptic number.

It is an amenable number.

307412128 is a deficient number, since it is larger than the sum of its proper divisors (297805562).

307412128 is an equidigital number, since it uses as much as digits as its factorization.

307412128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9606639 (or 9606631 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 307412128 is about 17533.1722172572. The cubic root of 307412128 is about 674.9014052610.

The spelling of 307412128 in words is "three hundred seven million, four hundred twelve thousand, one hundred twenty-eight".