30747024 has 240 divisors, whose sum is σ = 111421440. Its totient is φ = 7683840.

The previous prime is 30747019. The next prime is 30747029. The reversal of 30747024 is 42074703.

It is a Cunningham number, because it is equal to 5545²-1.

It is an interprime number because it is at equal distance from previous prime (30747019) and next prime (30747029).

It is not an unprimeable number, because it can be changed into a prime (30747029) 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 47 ways as a sum of consecutive naturals, for example, 521107 + ... + 521165.

It is an arithmetic number, because the mean of its divisors is an integer number (464256).

Almost surely, 2^30747024 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 30747024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55710720).

30747024 is an abundant number, since it is smaller than the sum of its proper divisors (80674416).

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

30747024 is a wasteful number, since it uses less digits than its factorization.

30747024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 30747024 is about 5544.9999098287. Note that the first 4 decimals coincide. The cubic root of 30747024 is about 313.2812206477.

The spelling of 30747024 in words is "thirty million, seven hundred forty-seven thousand, twenty-four".