30420235 has 8 divisors (see below), whose sum is σ = 38425680. Its totient is φ = 23055264.

The previous prime is 30420227. The next prime is 30420239. The reversal of 30420235 is 53202403.

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

It is a cyclic number.

It is not a de Polignac number, because 30420235 - 2³ = 30420227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (30420239) 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, 160012 + ... + 160201.

It is an arithmetic number, because the mean of its divisors is an integer number (4803210).

Almost surely, 2^30420235 is an apocalyptic number.

30420235 is a deficient number, since it is larger than the sum of its proper divisors (8005445).

30420235 is a wasteful number, since it uses less digits than its factorization.

30420235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320237.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30420235 is about 5515.4541970721. The cubic root of 30420235 is about 312.1673815602.

Adding to 30420235 its reverse (53202403), we get a palindrome (83622638).

The spelling of 30420235 in words is "thirty million, four hundred twenty thousand, two hundred thirty-five".