30420093 has 8 divisors (see below), whose sum is σ = 44247456. Its totient is φ = 18436400.

The previous prime is 30420067. The next prime is 30420107. The reversal of 30420093 is 39002403.

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 30420093 - 2¹² = 30415997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460878 + ... + 460943.

It is an arithmetic number, because the mean of its divisors is an integer number (5530932).

Almost surely, 2^30420093 is an apocalyptic number.

30420093 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30420093 is a deficient number, since it is larger than the sum of its proper divisors (13827363).

30420093 is a wasteful number, since it uses less digits than its factorization.

30420093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921835.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 30420093 is about 5515.4413241372. The cubic root of 30420093 is about 312.1668958327.

Adding to 30420093 its reverse (39002403), we get a palindrome (69422496).

The spelling of 30420093 in words is "thirty million, four hundred twenty thousand, ninety-three".