30420400030 has 16 divisors (see below), whose sum is σ = 54913622400. Its totient is φ = 12133292832.

The previous prime is 30420400027. The next prime is 30420400039. The reversal of 30420400030 is 3000402403.

It is a junction number, because it is equal to n+sod(n) for n = 30420399977 and 30420400013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420400039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4354734 + ... + 4361713.

It is an arithmetic number, because the mean of its divisors is an integer number (3432101400).

Almost surely, 2^30420400030 is an apocalyptic number.

30420400030 is a deficient number, since it is larger than the sum of its proper divisors (24493222370).

30420400030 is a wasteful number, since it uses less digits than its factorization.

30420400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716803.

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 30420400030 its reverse (3000402403), we get a palindrome (33420802433).

The spelling of 30420400030 in words is "thirty billion, four hundred twenty million, four hundred thousand, thirty".