30501330 has 32 divisors (see below), whose sum is σ = 75729600. Its totient is φ = 7852992.

The previous prime is 30501323. The next prime is 30501337. The reversal of 30501330 is 3310503.

It is an interprime number because it is at equal distance from previous prime (30501323) and next prime (30501337).

It is a super-2 number, since 2×30501330² = 1860662263537800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30501337) by changing a digit.

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, 16660 + ... + 18399.

It is an arithmetic number, because the mean of its divisors is an integer number (2366550).

Almost surely, 2^30501330 is an apocalyptic number.

30501330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30501330 is an abundant number, since it is smaller than the sum of its proper divisors (45228270).

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

30501330 is a wasteful number, since it uses less digits than its factorization.

30501330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35098.

The product of its (nonzero) digits is 135, while the sum is 15.

The square root of 30501330 is about 5522.8009198232. The cubic root of 30501330 is about 312.4445298877. Note that the first 3 decimals are identical.

Adding to 30501330 its reverse (3310503), we get a palindrome (33811833).

The spelling of 30501330 in words is "thirty million, five hundred one thousand, three hundred thirty".