30388232 has 24 divisors (see below), whose sum is σ = 66281310. Its totient is φ = 13023360.

The previous prime is 30388223. The next prime is 30388243. The reversal of 30388232 is 23288303.

It can be written as a sum of positive squares in only one way, i.e., 29658916 + 729316 = 5446^2 + 854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30388195 and 30388204.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 38369 + ... + 39152.

Almost surely, 2^30388232 is an apocalyptic number.

It is an amenable number.

30388232 is an abundant number, since it is smaller than the sum of its proper divisors (35893078).

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

30388232 is a wasteful number, since it uses less digits than its factorization.

30388232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77541 (or 77530 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 30388232 is about 5512.5522219749. The cubic root of 30388232 is about 312.0578733318.

The spelling of 30388232 in words is "thirty million, three hundred eighty-eight thousand, two hundred thirty-two".