30747852 has 36 divisors (see below), whose sum is σ = 81816280. Its totient is φ = 9709632.

The previous prime is 30747839. The next prime is 30747853. The reversal of 30747852 is 25874703.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×30747852² = 1890860805227808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30747853) 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 11 ways as a sum of consecutive naturals, for example, 21793 + ... + 23160.

Almost surely, 2^30747852 is an apocalyptic number.

It is an amenable number.

30747852 is an abundant number, since it is smaller than the sum of its proper divisors (51068428).

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

30747852 is a wasteful number, since it uses less digits than its factorization.

30747852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44982 (or 44977 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 30747852 is about 5545.0745711848. The cubic root of 30747852 is about 313.2840327846.

The spelling of 30747852 in words is "thirty million, seven hundred forty-seven thousand, eight hundred fifty-two".