30420112 has 20 divisors (see below), whose sum is σ = 59031936. Its totient is φ = 15186080.

The previous prime is 30420109. The next prime is 30420113. The reversal of 30420112 is 21102403.

It is a junction number, because it is equal to n+sod(n) for n = 30420092 and 30420101.

It is not an unprimeable number, because it can be changed into a prime (30420113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13533 + ... + 15619.

Almost surely, 2^30420112 is an apocalyptic number.

It is an amenable number.

30420112 is a deficient number, since it is larger than the sum of its proper divisors (28611824).

30420112 is a wasteful number, since it uses less digits than its factorization.

30420112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30420112 is about 5515.4430465739. The cubic root of 30420112 is about 312.1669608245.

Adding to 30420112 its reverse (21102403), we get a palindrome (51522515).

The spelling of 30420112 in words is "thirty million, four hundred twenty thousand, one hundred twelve".