30500712 has 120 divisors (see below), whose sum is σ = 94144050. Its totient is φ = 9218880.

The previous prime is 30500693. The next prime is 30500741. The reversal of 30500712 is 21700503.

It can be written as a sum of positive squares in only one way, i.e., 28579716 + 1920996 = 5346^2 + 1386^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 29 ways as a sum of consecutive naturals, for example, 78214 + ... + 78602.

Almost surely, 2^30500712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30500712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47072025).

30500712 is an abundant number, since it is smaller than the sum of its proper divisors (63643338).

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

30500712 is a wasteful number, since it uses less digits than its factorization.

30500712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 30500712 is about 5522.7449696686. The cubic root of 30500712 is about 312.4424196844.

The spelling of 30500712 in words is "thirty million, five hundred thousand, seven hundred twelve".