420030140 has 48 divisors (see below), whose sum is σ = 935565120. Its totient is φ = 158062080.

The previous prime is 420030139. The next prime is 420030167. The reversal of 420030140 is 41030024.

It is a congruent number.

It is an unprimeable number.

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, 20576 + ... + 35544.

It is an arithmetic number, because the mean of its divisors is an integer number (19490940).

Almost surely, 2^420030140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420030140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467782560).

420030140 is an abundant number, since it is smaller than the sum of its proper divisors (515534980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420030140 is a wasteful number, since it uses less digits than its factorization.

420030140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15062 (or 15060 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 420030140 is about 20494.6368594323. The cubic root of 420030140 is about 748.9051521516.

Adding to 420030140 its reverse (41030024), we get a palindrome (461060164).

The spelling of 420030140 in words is "four hundred twenty million, thirty thousand, one hundred forty".