308772938 has 16 divisors (see below), whose sum is σ = 501811200. Its totient is φ = 141925056.

The previous prime is 308772931. The next prime is 308772949. The reversal of 308772938 is 839277803.

It is a happy number.

308772938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 308772892 and 308772901.

It is not an unprimeable number, because it can be changed into a prime (308772931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104138 + ... + 107061.

It is an arithmetic number, because the mean of its divisors is an integer number (31363200).

Almost surely, 2^308772938 is an apocalyptic number.

308772938 is a deficient number, since it is larger than the sum of its proper divisors (193038262).

308772938 is a wasteful number, since it uses less digits than its factorization.

308772938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211261.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 308772938 is about 17571.9360913930. The cubic root of 308772938 is about 675.8957931992.

The spelling of 308772938 in words is "three hundred eight million, seven hundred seventy-two thousand, nine hundred thirty-eight".