30220015 has 32 divisors (see below), whose sum is σ = 43084800. Its totient is φ = 20335392.

The previous prime is 30220007. The next prime is 30220049. The reversal of 30220015 is 51002203.

It is not a de Polignac number, because 30220015 - 2³ = 30220007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30219977 and 30220004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114774 + ... + 115036.

It is an arithmetic number, because the mean of its divisors is an integer number (1346400).

Almost surely, 2^30220015 is an apocalyptic number.

30220015 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30220015 is a deficient number, since it is larger than the sum of its proper divisors (12864785).

30220015 is an equidigital number, since it uses as much as digits as its factorization.

30220015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30220015 is about 5497.2734150668. The cubic root of 30220015 is about 311.4809987147.

Adding to 30220015 its reverse (51002203), we get a palindrome (81222218).

The spelling of 30220015 in words is "thirty million, two hundred twenty thousand, fifteen".