307438328 has 16 divisors (see below), whose sum is σ = 592027080. Its totient is φ = 149564448.

The previous prime is 307438301. The next prime is 307438349. The reversal of 307438328 is 823834703.

It is a junction number, because it is equal to n+sod(n) for n = 307438291 and 307438300.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 519026 + ... + 519617.

Almost surely, 2^307438328 is an apocalyptic number.

It is an amenable number.

307438328 is a deficient number, since it is larger than the sum of its proper divisors (284588752).

307438328 is a wasteful number, since it uses less digits than its factorization.

307438328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038686 (or 1038682 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 307438328 is about 17533.9193564930. The cubic root of 307438328 is about 674.9205781268.

The spelling of 307438328 in words is "three hundred seven million, four hundred thirty-eight thousand, three hundred twenty-eight".