30789132 has 24 divisors (see below), whose sum is σ = 78372672. Its totient is φ = 9330000.

The previous prime is 30789127. The next prime is 30789149. The reversal of 30789132 is 23198703.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 30789093 and 30789102.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 116494 + ... + 116757.

It is an arithmetic number, because the mean of its divisors is an integer number (3265528).

Almost surely, 2^30789132 is an apocalyptic number.

It is an amenable number.

30789132 is an abundant number, since it is smaller than the sum of its proper divisors (47583540).

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

30789132 is a wasteful number, since it uses less digits than its factorization.

30789132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233269 (or 233267 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 30789132 is about 5548.7955449809. The cubic root of 30789132 is about 313.4241681216.

The spelling of 30789132 in words is "thirty million, seven hundred eighty-nine thousand, one hundred thirty-two".