30773238 has 8 divisors (see below), whose sum is σ = 61546488. Its totient is φ = 10257744.

The previous prime is 30773191. The next prime is 30773269. The reversal of 30773238 is 83237703.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

30773238 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 30773199 and 30773208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2564431 + ... + 2564442.

It is an arithmetic number, because the mean of its divisors is an integer number (7693311).

Almost surely, 2^30773238 is an apocalyptic number.

30773238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30773238 is a wasteful number, since it uses less digits than its factorization.

30773238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128878.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 30773238 is about 5547.3631573929. The cubic root of 30773238 is about 313.3702267810.

The spelling of 30773238 in words is "thirty million, seven hundred seventy-three thousand, two hundred thirty-eight".