30004740 has 36 divisors (see below), whose sum is σ = 91014924. Its totient is φ = 8001216.

The previous prime is 30004739. The next prime is 30004747. The reversal of 30004740 is 4740003.

It can be written as a sum of positive squares in 2 ways, for example, as 7650756 + 22353984 = 2766^2 + 4728^2 .

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

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

It is not an unprimeable number, because it can be changed into a prime (30004747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83167 + ... + 83526.

Almost surely, 2^30004740 is an apocalyptic number.

30004740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30004740 is an abundant number, since it is smaller than the sum of its proper divisors (61010184).

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

30004740 is a wasteful number, since it uses less digits than its factorization.

30004740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166708 (or 166703 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 30004740 is about 5477.6582587818. The cubic root of 30004740 is about 310.7396144914.

Adding to 30004740 its reverse (4740003), we get a palindrome (34744743).

The spelling of 30004740 in words is "thirty million, four thousand, seven hundred forty".