30320514 has 64 divisors (see below), whose sum is σ = 78624000. Its totient is φ = 8657712.

The previous prime is 30320471. The next prime is 30320531. The reversal of 30320514 is 41502303.

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

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 31 ways as a sum of consecutive naturals, for example, 17704 + ... + 19340.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^30320514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30320514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39312000).

30320514 is an abundant number, since it is smaller than the sum of its proper divisors (48303486).

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

30320514 is a wasteful number, since it uses less digits than its factorization.

30320514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30320514 is about 5506.4066322784. The cubic root of 30320514 is about 311.8259013903.

Adding to 30320514 its reverse (41502303), we get a palindrome (71822817).

The spelling of 30320514 in words is "thirty million, three hundred twenty thousand, five hundred fourteen".