30347020 has 24 divisors (see below), whose sum is σ = 69522768. Its totient is φ = 11035200.

The previous prime is 30346999. The next prime is 30347027. The reversal of 30347020 is 2074303.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (30347027) 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 7 ways as a sum of consecutive naturals, for example, 68751 + ... + 69190.

It is an arithmetic number, because the mean of its divisors is an integer number (2896782).

Almost surely, 2^30347020 is an apocalyptic number.

It is an amenable number.

30347020 is an abundant number, since it is smaller than the sum of its proper divisors (39175748).

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

30347020 is a wasteful number, since it uses less digits than its factorization.

30347020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137961 (or 137959 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 30347020 is about 5508.8129392819. The cubic root of 30347020 is about 311.9167403300.

The spelling of 30347020 in words is "thirty million, three hundred forty-seven thousand, twenty".