30630740 has 48 divisors (see below), whose sum is σ = 73847424. Its totient is φ = 10454400.

The previous prime is 30630737. The next prime is 30630751. The reversal of 30630740 is 4703603.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 46010 + ... + 46670.

It is an arithmetic number, because the mean of its divisors is an integer number (1538488).

Almost surely, 2^30630740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30630740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36923712).

30630740 is an abundant number, since it is smaller than the sum of its proper divisors (43216684).

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

30630740 is a wasteful number, since it uses less digits than its factorization.

30630740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 30630740 is about 5534.5044945325. The cubic root of 30630740 is about 312.8857827534.

The spelling of 30630740 in words is "thirty million, six hundred thirty thousand, seven hundred forty".