30047372 has 6 divisors (see below), whose sum is σ = 52582908. Its totient is φ = 15023684.

The previous prime is 30047371. The next prime is 30047377. The reversal of 30047372 is 27374003.

It is not an unprimeable number, because it can be changed into a prime (30047371) 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 as a sum of consecutive naturals, namely, 3755918 + ... + 3755925.

It is an arithmetic number, because the mean of its divisors is an integer number (8763818).

Almost surely, 2^30047372 is an apocalyptic number.

It is an amenable number.

30047372 is a deficient number, since it is larger than the sum of its proper divisors (22535536).

30047372 is a wasteful number, since it uses less digits than its factorization.

30047372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511847 (or 7511845 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 30047372 is about 5481.5483214143. The cubic root of 30047372 is about 310.8867154941.

The spelling of 30047372 in words is "thirty million, forty-seven thousand, three hundred seventy-two".