30420238693 has 16 divisors (see below), whose sum is σ = 32891575360. Its totient is φ = 27967814784.

The previous prime is 30420238661. The next prime is 30420238699. The reversal of 30420238693 is 39683202403.

It is not a de Polignac number, because 30420238693 - 2⁵ = 30420238661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420238699) 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 15 ways as a sum of consecutive naturals, for example, 7008718 + ... + 7013056.

It is an arithmetic number, because the mean of its divisors is an integer number (2055723460).

Almost surely, 2^30420238693 is an apocalyptic number.

It is an amenable number.

30420238693 is a deficient number, since it is larger than the sum of its proper divisors (2471336667).

30420238693 is a wasteful number, since it uses less digits than its factorization.

30420238693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 30420238693 in words is "thirty billion, four hundred twenty million, two hundred thirty-eight thousand, six hundred ninety-three".