420144030 has 64 divisors (see below), whose sum is σ = 1122232320. Its totient is φ = 111853728.

The previous prime is 420144029. The next prime is 420144071. The reversal of 420144030 is 30441024.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420143994 and 420144012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264619 + ... + 266201.

It is an arithmetic number, because the mean of its divisors is an integer number (17534880).

Almost surely, 2^420144030 is an apocalyptic number.

420144030 is an abundant number, since it is smaller than the sum of its proper divisors (702088290).

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

420144030 is a wasteful number, since it uses less digits than its factorization.

420144030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582 (or 2576 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 420144030 is about 20497.4152028981. The cubic root of 420144030 is about 748.9728338819.

Adding to 420144030 its reverse (30441024), we get a palindrome (450585054).

The spelling of 420144030 in words is "four hundred twenty million, one hundred forty-four thousand, thirty".