30763128 has 64 divisors (see below), whose sum is σ = 88329600. Its totient is φ = 8830080.

The previous prime is 30763127. The next prime is 30763141. The reversal of 30763128 is 82136703.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30763095 and 30763104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30763127) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1950 + ... + 8082.

It is an arithmetic number, because the mean of its divisors is an integer number (1380150).

Almost surely, 2^30763128 is an apocalyptic number.

30763128 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30763128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44164800).

30763128 is an abundant number, since it is smaller than the sum of its proper divisors (57566472).

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

30763128 is a wasteful number, since it uses less digits than its factorization.

30763128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172 (or 6168 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 30763128 is about 5546.4518387885. The cubic root of 30763128 is about 313.3359056174.

The spelling of 30763128 in words is "thirty million, seven hundred sixty-three thousand, one hundred twenty-eight".