30420124 has 12 divisors (see below), whose sum is σ = 60840304. Its totient is φ = 13037184.

The previous prime is 30420119. The next prime is 30420161. The reversal of 30420124 is 42102403.

30420124 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 30420098 and 30420107.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 543189 + ... + 543244.

Almost surely, 2^30420124 is an apocalyptic number.

It is an amenable number.

30420124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30420124 is a wasteful number, since it uses less digits than its factorization.

30420124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086444 (or 1086442 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30420124 is about 5515.4441344283. Note that the first 3 decimals coincide. The cubic root of 30420124 is about 312.1670018719.

Adding to 30420124 its reverse (42102403), we get a palindrome (72522527).

The spelling of 30420124 in words is "thirty million, four hundred twenty thousand, one hundred twenty-four".