308093428 has 6 divisors (see below), whose sum is σ = 539163506. Its totient is φ = 154046712.

The previous prime is 308093411. The next prime is 308093459. The reversal of 308093428 is 824390803.

308093428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 273307024 + 34786404 = 16532^2 + 5898^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38511675 + ... + 38511682.

Almost surely, 2^308093428 is an apocalyptic number.

It is an amenable number.

308093428 is a deficient number, since it is larger than the sum of its proper divisors (231070078).

308093428 is a wasteful number, since it uses less digits than its factorization.

308093428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77023361 (or 77023359 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 308093428 is about 17552.5903501449. The cubic root of 308093428 is about 675.3996192430.

The spelling of 308093428 in words is "three hundred eight million, ninety-three thousand, four hundred twenty-eight".