30027320 has 64 divisors (see below), whose sum is σ = 69854400. Its totient is φ = 11612160.

The previous prime is 30027317. The next prime is 30027329. The reversal of 30027320 is 2372003.

30027320 = 615² + 616² + ... + 685².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30027329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275426 + ... + 275534.

It is an arithmetic number, because the mean of its divisors is an integer number (1091475).

Almost surely, 2^30027320 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 30027320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34927200).

30027320 is an abundant number, since it is smaller than the sum of its proper divisors (39827080).

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

30027320 is a wasteful number, since it uses less digits than its factorization.

30027320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 30027320 is about 5479.7189708962. The cubic root of 30027320 is about 310.8175437469.

Adding to 30027320 its reverse (2372003), we get a palindrome (32399323).

The spelling of 30027320 in words is "thirty million, twenty-seven thousand, three hundred twenty".