30380740 has 24 divisors (see below), whose sum is σ = 68707800. Its totient is φ = 11217408.

The previous prime is 30380731. The next prime is 30380761. The reversal of 30380740 is 4708303.

It can be written as a sum of positive squares in 4 ways, for example, as 2985984 + 27394756 = 1728^2 + 5234^2 .

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, 58165 + ... + 58684.

It is an arithmetic number, because the mean of its divisors is an integer number (2862825).

Almost surely, 2^30380740 is an apocalyptic number.

It is an amenable number.

30380740 is an abundant number, since it is smaller than the sum of its proper divisors (38327060).

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

30380740 is a wasteful number, since it uses less digits than its factorization.

30380740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116871 (or 116869 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 30380740 is about 5511.8726400380. The cubic root of 30380740 is about 312.0322260160.

The spelling of 30380740 in words is "thirty million, three hundred eighty thousand, seven hundred forty".