30420115 has 8 divisors (see below), whose sum is σ = 39822768. Its totient is φ = 22123680.

The previous prime is 30420113. The next prime is 30420119. The reversal of 30420115 is 51102403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30420115 - 2¹ = 30420113 is a prime.

It is a super-2 number, since 2×30420115² = 1850766793226450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30420113) 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 7 ways as a sum of consecutive naturals, for example, 276492 + ... + 276601.

It is an arithmetic number, because the mean of its divisors is an integer number (4977846).

Almost surely, 2^30420115 is an apocalyptic number.

30420115 is a deficient number, since it is larger than the sum of its proper divisors (9402653).

30420115 is a wasteful number, since it uses less digits than its factorization.

30420115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553109.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30420115 is about 5515.4433185375. The cubic root of 30420115 is about 312.1669710863.

Adding to 30420115 its reverse (51102403), we get a palindrome (81522518).

The spelling of 30420115 in words is "thirty million, four hundred twenty thousand, one hundred fifteen".